Question

(1) 1 (2) 2 6. How many unpaired electrons does an atom of phosphorous have in its ground state? (3) 3 (4) 5 A possible set of quantum numbers for the last electron added to complete an atom of silicon (SI) in its ground state is A 4 0 0 +% B 3 0 +1 - C. 4 1 -1 +² D 3 1 +1 -2 (1) A (2) 8 (3)C (4) D 8. A possible set of quantum numbers to describe an electron in a 5s subshell is m. = % (2) n = 4 = 0 m = 0, m = -) (3) n = 4, { = 5, m = 0, m,- +% (1) n = 5 * 2, m = 2, (4) n = 5, 0 m = 0. (1) 6 9. What is the maximum total number of electrons possible in the 6p orbitals? 10. A ground-state atom of manganese has unpaired electrons and is (2) 6. diamagnetic (3) 5, paramagnetic (4) 3, paramagnetic (2) 4 (3) 2 (4) (1)0, diamagnetic 11. If we take away two electrons from the outer shell of strontium, it would have the same electron configuration as what element? (1) krypton (2) germanium (3) argon (4) magnesium 12. The orbital diagram for a ground-state nitrogen atom is 1s 1. 1 2. 1 3. 1 | Het 이치치해 dalalalal 21 | (1) 1 (2) 2 (3) 3 (4) 4 13. What is the wavelength of radiation that has a frequency of 3.4 x 10'15-'? (1 m = 10 nm) (1) 1.0 x 10 nm (2) 8.8 x 10-13 nm (3) 8.8 x 10nm (4) 1.0 x 10 nm 14. For which process is the least amount of energy required? (2) B2 (g) - B*(g) + (3) B3*g) - B4 (9) + (1) B(g) → B (4) Be*(g) (g) + e Be2(g) + 15. If a hydrogen atom and a helium atom are traveling at the same speed, (1) the wavelength of the helium atom will be about 4 times longer than the wavelength of the hydrogen atom. (2) the wavelength of the hydrogen atom will be about 4 times longer than the wavelength of the helium atom (3) the wavelength of the hydrogen atom will be about 2 times longer than the wavelength of the helium. (4) the wavelength of the helium atom will be about 2 times longer than the wavelength of the hydrogen atom (1)1 (2) 2 (3) 3 (4) 0 16. How many unpaired electrons are in the 3d subshell of a Ti atom?

Answer 1

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