question archive 1) Each of the following sets of quantum numbers is supposed to specify an orbital
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1) Each of the following sets of quantum numbers is supposed to specify
an orbital. Which of the following sets of quantum numbers contains an error?
a)n = 2, l = 1 , ml = -1
b)n = 4, l = 2, ml =0
c)n = 3, l =3 , ml = -2
d)n = 1, l = 0, ml =0
e)n = 3, l = 0, ml =0
2) How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 609 kJ of energy? Planck's constant 6.626 x 10^-34 J.s, speed of light 3.00 x 10^8 m/s.
a)3.37 x 10 19 photons
b)3.06 x 10 30 photons
c)1.80 x 10 24 photons
d)4.03 x 10 28 photons
e)2.48 x 10 25 photons
3) In which orbital below would an electron (on average) be closest to the nucleus?
a)2p
b)4s
c)2s
d)5d
e)3p
4) How many different values of l are possible in the third principal level?
a)1
b)2
c)3
d)0
e)4
5)How many valence electrons do the alkali earth metals possess?
a)1
b)2
c)7
d)6
e)8
6)Give the ground state electron configuration for Pb.
a)[Xe]6s26p2
b)[Xe]6s25d106p2
c)[Xe]6s25f146d106p2
d)[Xe]6s24f145d106p2
e)[Xe]6s24f145d106s26p2
7) Of the following, which atom has the largest atomic radius?
a)Rb
b)I
c)Cs
d)At
8)Place the following types of electromagnetic radiation in order of increasing wavelength.
ultravioletlight gamma rays radio waves
a)gamma rays < radio waves < ultraviolet light
b)radio waves < ultraviolet light < gamma rays
c)radio waves < gamma rays < ultraviolet light
d)ultraviolet light < gamma rays < radio waves
e)gamma rays < ultraviolet light < radio waves
9)Place the following in order of increasing IE1.
N F As
a)N < As < F
b)As < N < F
c)F < N < As
d)As < F < N
e)F < As < N
10)Choose the ground state electron configuration for Zn 2 .
a)[Ar]4s23d8
b)[Ar]3d10
c)[Ar]4s23d6
d)[Ar][Ar]3d8