Question

when the electroni c e mis emitted Show 657 333 411 AM 13. Which of the following is an exce a. Af b2d 3d. 2p 3 l lo 14. How many quantum numbers are a.4 .2 0.1 0.3 0.5 earts 15. The.... e quantum number defines the shape of an ortal antum number delines a. spin b.magnetic c principal d. azimuthale si 16. Based on the octet rule, iodine mosty for an a. p. b.pt cr dor et y on 17. Give the ground state electron configuration for Se. A) [Ar]4s23d104p4 B) [Ar]43244104p4 C) At\4-2341046 D) [Ar] 30 D) 12 C) 28 18. Give the number of valence electrons for Pb. A) 4 B)2 19. Place the following elements in order of decreasing atomic radius. xe Rb Ar A) Ar> Xe > Rb B) Xe> Rb > AI C) APRb> Xe D) Rb> Xe > AM 20. Place the following in order of increasing IE) (first ionization energy) N F As A) N < As <F B) As <N<F CF <N<AS DAS < F<N D) [Ar]4523d4 21. Choose the ground state electron configuration for Ti2. A) [Ar]3d2 B) [Ar]452 C) [Ar]4s23d2 22. Place the following in order of increasing metallic character. Na K Cs Rb

Answer 1

12. Rydberg Equation , Rn = 109 678 cm! = 109678 601 = ?5905.78 cm! 64x4 = 3.89x105 cm = 389 X107 cm! = 389 90 389 (©) 130 b) ad d = 2 n=2 ford and I i alsways equal or less than (n-1), 14. d) 3. We require three quantum no. to designate a particular abital nomely an peniple quantum no.), lazimuthal quantum no.), m (magnetic quantum no.) n Tells the main shell vond l tells about nomber of ortal while my speufy the specifie parbital (me =-l ford)

for example! - 2p 2=2 l=1 , me = +1,0,-! 2p 15. d) azimuthal quantum no. describe the shape of orbital , - Angular ( azimuthal) for exi to, sobile! , dal, p abilu =2, d and tal O