4s 2 3d 10 4p 6. answer choices . Step-3: Determine the valence shell and calculate the total electrons. 3 electrons. The n = 1 shell is filled with two electrons and three electrons will occupy the n = 2 shell. Selenium atoms have 34 electrons and the shell structure is 2.8.18.6. This makes option (d) the correct choice. C) 4p. Number of electrons in the subshell! B. a transition metal . Question 3. Therefore you have 7 Its electron configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3 . Valence electrons: For main group elements (i.e s-block and p-block elements), the valence electrons are the electrons present in the outermost orbit. Five of these isotopes are stable: 74 Se, 76 Se, 77 Se, 78 Se, and 80 Se. By looking at the electron configuration of selenium, it is possible to determine how many electrons are in each sub-shell. There are five sub-shells, but only four of them are used by naturally occurring elements: s, p, d and f. Worsted cloth made from wool ispointO (a) smooth(b) rough0 (c) hard0 (d) heavy , Write the molecular energy level diagram for carbon molecule.calculate So for value n = 5 and l = 1 ) total no electrons! how many electrons can be fit which n=3,l=1 . Valence electrons are the ones in the outermost SHELL, not just the last subshell. Valence electrons are the ones in the outermost SHELL, not just the last subshell. And, you can also find out the shape of the atomic orbital using this quantum number. The 2nd shell is made up of two subshells, s and p. It can consequently comprise 2+6=8 electrons. The core notation for selenium is [Ar]3d 10 4s 2 4p 4. Which two electron configurations represent elements that would have similar chemical properties? The ground state electron configuration of ground state gaseous neutral selenium is [Ar].3d 10.4s 2.4p 4 and the term symbol is 3 P 2. How many electrons can The chemical symbol for Selenium is Se. There is debate about electron configuration in the middle. The M shell contains 3s, 3p, and 3d, and can carry 18 electrons. There are 5 orbitals in the d-subshell, each orbital can carry at most 2 electrons. In short form- Germanium Electron configuration: [Ar] 4s 2 3d 10 4p 2. 18

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alternatives An orbital can at most hold how many electrons? The K shell contains a 1s subshell hence it can carry 2 electrons, the L shell has 2s and 2p, and can carry 8 electrons. 5, paramagnetic (odd numbers are always paramagnetic) Write the ground-state electron configuration for S2-. In other words, $2+8+8=18$ electrons are inner-shell ones). c) How many electrons could this set of orbitals hold? 4p: 3: 6: 4: 2: 2,1,0,-1,-2: 4d: 5: 10: 4: 3: is added to each of the degenerate orbitals in a subshell before two electrons are added to any orbital in the subshell. 5. So the last electron of selenium enters the p-subshell or p-orbital. e.g. 3 Chemical and Physical Properties Expand this section. The p-orbital has three sub-orbitals. Sub-shells s, p, d and f hold a maximum of two, six, 10 and 14 electrons, respectively. 2. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting Consider the element with the electron configuration [Kr]5s24d7. E. a noble gas. The fourth energy level has 18 electrons. Explanation: A 4p orbital, which is part of the p subshell located on the fourth energy level, can hold a maximum of two electrons. Selenium is a member of the sulfur family with elements including tellurium and polonium. The six electrons in the outermost shell allow selenium to have a variety of valence numbers. The fourth energy level of the periodic table includes the 4s 3d and 4p orbitals. Each sub-orbital can have a maximum of two electrons. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 1 A) Sc B) Si C) La D) Y 41) Which of the following electron configurations is In their part of the periodic table, the sub shells of the electronic states are filled in the sequence Is 2s 2P 3s 3p 3d 4s 4p What are (a) the highest occupied subshell for selenium and (b) the number of electrons in it, (c) the highest occupied subshell for How many electrons can the 4 Shell hold? This element is A. a representative element. 6. 4p 4d 5s 5p Each blank represents an ORIBITAL which can hold up to TWO electrons "1s" means first shell, "s" subshell. B) 4p5. 2022-05-28. The s-subshell accommodates up to 2 electrons; p-subshell: 6; d-subshell contains 10 while f does not have any restrictions in this regard accommodating 14 total or two less than its maximum occupancy capacity as given by the formula max =2*(2l+1) . Aluminum has THREE valence electrons. Lewis structures for the elements in the first three periods and Group 2 of the periodic table are shown in Table 5.5. In their part of the periodic table, the sub shells of the electronic states are filled in the sequence Is 2s 2P 3s 3p 3d 4s 4p What are (a) the highest occupied subshell for selenium and (b) the number of electrons in it, (c) the highest occupied subshell for Molecular Weight: 78.97. 4s-4p band overlap allows calcium to behave as a conductor. the third shell, which can hold as many as 18 electrons. Since each of those p orbitals can hold a maximum of two electrons, the p subshell can hold a maximum of Therefore, you can say that a 4p orbital can hold a maximum of two electrons and the 4p subshell can hold a maximum of six electrons. It is consisting of maximum 18 electrons. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. The number of electrons per shell of selenium is 2, 8, 18, 6. SubShell: Electrons: s: 2: p: 6: d: 10: f: 14 The n number determines how many of the subshells make up the shell. You may find it easier to just remember: How many energy levels are present in The ten 3d electrons of selenium are not shown because they are not in the outer shell, which is the principal energy level 4. For example, the 1st shell is made up of 1 subshell, s. It can therefore contain only 2 electrons. In long form- Electronic configuration of Germanium Ge: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 2. Contents. What is the charge on the monatomic ion of nitrogen, the nitride ion?-3. Thus the 3p subshell will contain 6 electrons. five spatial orbitals which can hold electrons in this subshell. 14. An atom of boron (atomic number 5) contains five electrons. Number of electrons in the subshell! 8 Multiple Choice 2 8 00:09:34 O 4 eBook 0 5 2. 4 The fourth energy level of the periodic table includes the 4s 3d and 4p orbitals. If p-oritals are filling, then the s-orbitals are already full (add 2 more valence electrons). Selenium has 34 electrons. The N shell containing 4s, 4d, 4p and 4f, can carry 32 electrons. 1 electron. Chemistry questions and answers. The total amount of electrons that it takes to fill a p subshell are electrons. general-chemistry; Answer: B. 9. which lists how many electrons are in each subshell. All the possible subshells for values of n up to 4 are tabulated below. [Ar]4s 23d 10 4p 3 is the electron configuration of a(n) [Ar]3d 10 4s 24p 5 shows that the outermost electrons are in the s and p orbitals in the 4th energy level making the principal quantum number = 4. D) 2p1. Given its position on the periodic table, selenium is usually classified as a non-metal or metalloid. Argon. Its Lewis structure is . How many 4p electrons are in arsenic? C) 4f11. C. a nonmetal. 3. A ground-state atom of manganese has ___ unpaired electrons and is _____. potassium (Z=19) has one electron positioned in the 4s subshell: calcium (Z=20) has two electrons located in the 4s subshell: With an atom of calcium, the 4s subshell is now full of electrons. Do you understand this? The simple answer: The elements will lie in the s, p, d or f block will completely depend upon the subshell in which the last electron will enter. The next largest atom, beryllium, has 4 electrons, so its electron configuration is 1s 2 2s 2. B) None of the above 11) Which of the following elements is found as a diatomie species in its most stable form? A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. A total of 18 electrons can be placed in the 3 shell. For example, the 1st shell is made up of 1 subshell, s. It can therefore contain only 2 electrons. 2 Names and Identifiers Expand this section. How many electrons are in the 4p subshell of selenium? The fourth shell has 4 subshells : the s subshell , which has 1 orbital with 2 electrons, the p subshell , which has 3 orbitals with 6 electrons, the d subshell , which has 5 orbitals with 10 electrons, and the f subshell , which has 7 orbitals with 14 electrons, for a total of 16 . Selenium, ion(4+) 22541-55-5. 9. Consider the elements selenium (Z = 34), bromine (Z = 35), and krypton (Z = 36). In fact, any orbital, regardless of its energy level, subshell, and orientation, can hold a maximum of two electrons, one Then for oxygen atom having atomic no 8 Answer (1 of 2): There are two unpaired electrons in an atom of oxygen in it's ground state. The fourth energy level has 18 electrons. Selenium. In long form- Electronic configuration of Germanium Ge: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 2. Lewis structures for the elements in the first three periods and Group 2 of the periodic table are shown in Table 5.5. However, this rule is justified for elements of second row in the periodic table, which their outermost- shell capacity is 8 electrons. Recall that the number of orbitals in a subshell is 2l+1. The 2nd shell is made up of 2 subshells, s and p. It can therefore contain 2+6=8 electrons. Hence, selenium is the p-block element. a) 0 b) 2 c) 4 d) 6 . How many electrons can be placed into the 2s subshell? Free. The n number determines that how many of the subshells make up the shell. B) 6d. The 2s subshell holds a maximum of 2 electrons, and the 2p subshell holds a maximum of 6 electrons. of 2 electrons, the third electron must go into the second shell.Beside above, how many electrons are in the 4th Shell? B. a transition metal. How many orbitals are allowed in a subshell if the angular momentum quantum number for electrons in that subshell is 3? D. an actinide element. A) 2 B) 5 C)o D) 4 E) 6 31. D) 4f. How many orbitals does each subshell contain? 1s2 B. The 4p orbital holds 6 electrons. Its Lewis structure is . A) 5s3. Step 8: add electrons to the 4p subshell (maximum of 6 electrons), when this is full, go to step 9. etc You can use the Aufbau principle to correctly predict the electronic configuration of the atoms of most elements. 40) The element with the electron configuration given below is ________. 2. Answer: For F, L= 3 orbital angular momentum= n-1 where n is 4 , the principal quantum number.g So its occupation number is 2(2L+1)=14 elevtrons. It has maximum 8 electrons. Name two elements in which the last electron(s) are placed in the 3d subshell. 4 electrons. As with oxygen or sulfur, selenium needs to gain only 2 electrons to fill its 4p orbital to capacity. Christopher P. Arsenic has 5 valence electrons. 3 How to figure out how many electrons are in Each shell? Create . In the selenium ground-state electron configuration, four electrons of the 4p orbital are located in the 4p x (2), 4p y and 4p z sub-orbitals. How many electrons can fit in the orbital for which n = 3 and l = 1? The formula for how many electrons are in a given shell is: 2n2 where n= # of shells. How many electrons are in the 4p subshell of a selenium atom? 1s22s22p6 C. 1s22s2 D. 1s22s22p63s2 E. 3s23p4. (NOTE: at this point, the d-electrons are no longer valence electrons and are not used in bonding.) Concerning the electron configuration of sulfur, 1s22s22p63s23p4, which of the following represents the core electrons only? The electronic configuration (electron configuration) given in subshell notation indicates how many electrons are in the subshell of each shell (in the energy sublevels of each energy level) Example of a subshell electronic configuration: 1s 2 2s 2 2p 4 2 electrons in the 1s subshell, 2 electrons in the 2s subshell, 4 electrons When n=5, it is O shell which are fifth shell. 6. Diatomic refers to atoms which bond to an identical atom when at 2 electrons. It has maximum 50 electrons. There are five sub-shells, but only four of them are used by naturally occurring elements: s, p, d and f. Each sub-shell accommodates a certain number of electrons. Chemistry. You enter 4 in for "n" and you will get 32 electrons. The nearest noble gas (that comes before selenium) is Argon, so we use it as our core, and place it in brackets. The core notation for selenium is [Ar]3d 10 4s 2 4p 4. That is, the first shell of selenium has two electrons, the second shell has eight electrons, the 3rd shell has eighteen electrons and the 4th shell has six electrons. 4. In short form- Germanium Electron configuration: [Ar] 4s 2 3d 10 4p 2. The remaining five electrons will go and occupy the 4p orbital. Be = 1s 2 2s 2 Write electron configurations in line notation for H, He and Li. How many electrons are in the 4p orbitals of selenium? is Aluminum has THREE valence electrons. How many electrons can be placed into the 3d subshell? [Ar]4s23d104p4 For a total of 34 electrons. px, py, pz. its in notice that Sn is in the part of the table (columns 13-18) where the p-orbitals are filling (since it's in the 5th column, it has 5 valence electrons in the p orbitals). It has maximum 32 electrons. Give all the allowed combinations of the four quantum numbers (n, l, ml, ms) for electrons in a 4d subshell. It has maximum 72 electrons. In fact, any orbital, regardless of its energy level, subshell, and orientation, can hold a maximum of two electrons, one having spin-up and one having spin-down. Because any s subshell can contain only two electrons, the fifth electron must occupy the next energy level, which will be a 2p orbital. 2) Give all possible sets 10. The electron in a hydrogen atom with an energy of -0.544 eV is in a subshell with 18 states. Electrons are added to a subshell with the same value of the spin quantum number until each orbital in 4. 144 two electrons in an orbital, then repulsive forces are present; thus, higher energy. yes the answer is 2, because each orbital regardless of the subshell has a maximum capacity to hold 2 electrons. How many electrons can have the quantum B. It means it has 32 electrons. Consider the elements selenium (Z = 34), bromine (Z = 35), and krypton (Z = 36). In selenium, the first energy level has two electrons in sub-shell s. Example: Selenium has a [Ar] 3d 10 4s 2 4p 4 configuration. The electron configuration of Selenium is [Ar] 3d 10 4s 2 4p 4. The ten 3d electrons of selenium are not shown because they are not in the outer shell, which is the principal energy level 4. 2020-11-13 by Nick Connor Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Dates: Modify . If l = 2 and ml = 2, give all the allowed combinations of the four quantum numbers (n, l, ml, ms) for electrons in the corresponding 3d subshell. Therefore, a p-subshell can contain maximum (2*3) = 6 number of electrons. We can write electronic configuration of germanium in two forms, as below :-. 2005-08-08. 10. Or J = L+S.occ.no.= 2J +1 So 4F has two J values J=L+S or L-S, so either 7/2 or 5/2 So elect.no. 1 Structures Expand this section. The third step is to diagnose the valence shell. in Chemistry. For example: the 1st shell is consisting of one subshell s. It can consequently include only two electrons. Answer (1 of 2): The Right End column is noble gases, and subshell-p is full. When n=6, it is P shell which are sixth shell. 1 electron . How many electrons do the 4p subshells hold? Krypton. physics. 4p 4d 5s 5p Each blank represents an ORIBITAL which can hold up to TWO electrons "1s" means first shell, "s" subshell. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. The chemical symbol for Selenium is Se. Electron configuration of Selenium is [Ar] 3d10 4s2 4p4. Possible oxidation states are +4,6/-2. In an investigation of the electronic absorption spectrum of a particular element, it is found that a photon having = 500 nm provides just enough energy to promote an electron from n = 2 to n = 3. how many electrons can be fit which n=3,l=1 . The outermost electron in the element is filled in d orbital. Selenium (34 Se) has six natural isotopes that occur in significant quantities, along with the trace isotope 79 Se, which occurs in minute quantities in uranium ores. When n=4, it is N shell which are fourth shell. 4s, 4p, 4d, 4f: The sub-orbitals are p x, p y, and p z. However, the 1st inside that (column 17) of the Periodic Table has 1 empty subshell-p position. Valence electrons: For main group elements (i.e s-block and p-block elements), the valence electrons are the electrons present in the outermost orbit. Just as oxygen and sulfur anions (ions that have gained electrons) have a 2- charge, so too does selenium, which forms a selenide ion. The 4p orbital holds 6 electrons. It is explained below According to the Aafbau Principle electrons fill the subshells in order of their increasing energy level. This family has six electrons in the outermost shell. Electron Configuration and Oxidation States of Selenium Electron configuration of Selenium is [Ar] 3d10 4s2 4p4. 34) In an atom with many electrons, which of the following orbitals would be highest in energy? There is only one electron in the 4p subshell. 3) As we mentioned in the previous part, the first 2 outer-shell electrons would occupy the s-subshell of the 4th shell ($4s^2$). Name two elements in which the valence electrons are in a psubshell. - Answers Since only two electrons fill each orbital, 2(2l+1) electrons fill each subshell. SubShell: Electrons: s: 2: p: 6: d: 10: f: 14 The n number determines how many of the subshells make up the shell. Thus selenium is in Period 4 (electrons are in the 4s and 4p orbitals), and belongs to Group 16 (number of electrons in the configuration beyond the preceding rare gas = 10 + 2 + 4 = 16). Write its electron configuration and find: A) atomic number B) total number of s electrons C) total number p electrons D) total . How many unpaired electrons does selenium (Se) have? We can write electronic configuration of germanium in two forms, as below :-. answer choices . answer choices . Then, the electrons would occupy the d-subshell of the 3rd shell. A) 7s. 11) A) phosphorus B) bromine C) xenon D) sulfur E) neon 12) 12) How many electrons are in the 4p subshell of selenium? 4s, 4p, 4d, 4f: The following set of quantum numbers How many electrons are in the outermost energy shell for promethium (element 61)? Because lithium's final electron goes into the 2s subshell, we write the electron configuration of a lithium atom as 1s 2 2s 1. The 2p, 3p, 4p, etc., can each hold six electrons because they each have three orbitals, that can hold two electrons each (3*2=6). It means it has 32 electrons. Click to see full answer. Science. Selenium specifically has an electron configuration of 2-8-18-6. true false true false true false true false true false n: 2 How many electrons are in the 4p orbitals of selenium? 33) Which of the following subshell notations for electron occupancy is an impossibility? The 2nd shell is made up of 2 subshells, s and p. It can therefore contain 2+6=8 electrons. Possible oxidation states are +4,6/-2. It indicates the subshell of the electron. A. The 3d, 4d etc., can each hold ten electrons, because they each have five orbitals, and each orbital can hold two electrons (5*2=10). A 4f subshell? When n=3, It is third shell are M shell. Since each orbital can hold two electrons, the set of five orbitals could hold up to 10 electrons before it is full.