Question

росс Чистоп сипуппе пак сде.
c) 32
3 The maximurn number of elements in 3rd period is
a) 8
b) 18
d) between 8 and 18
4. The element with positive electron gain enthalpy is
a) hydrogen b) helium
C) sodium
d) oxygen
OR
Atoms of which of the following elements has the greatest ability to attract electrons?
a, silicon
b) sodium
c) nitrogen
d) chlorine
5. The tendency towards complex formation is maximum in
a) s-block elements b) p--block elements c) d-block elements d, f-block elements
6. Which of the following sets of quantum numbers is possible?
a) n=3,1 = 3, m = -3, s = +1/2
b) n = 3,1 = 1, m = 2, s = -1/2
c)n = 1, 1 = 0, m = 0, s = 0
d) n = 3,1 = 2, m = 3, s = -1/2
OR
Uncertainty in the position of an electron (mass = 9,1 x10-31 kg) moving with a velocity 300 ms',
accurate upto 0.001% will be
a) 5.76 x 10-2 m b) 1.92 x 10 m c) 3.84 x 10-2 m d) 19.2 x 10-2 m
7. The angular momentum of electror in d-orbital is equal to
a) 2v3 h/210 b) V6 h/270
c) V2 h/21
d) 5 h/2m
OR
Which of the following d-orbital will have electron density along the axis?
a) dras
b) dyz
c) dxy
d) dx2-y2
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Answer 1

Answer:

sorry I didn't

Explanation:

pls type the small quations