Question

An atom of an element contains 29 electrons and 35 neutrons. Deduce:
(a) number of protons
(b) electronic configuration
(c) number of paired electrons
(d) number of unpaired electrons

Answer 1

Answer:

(a)29

(b)[Ar]3d104s1

(d)1

Explanation:

no.of protons=no.of electrons=29

from the configuration it is clear that there is one unpaired electron

Answer 2

a) number of protons = 29

(b) electronic configuration = [Ar] 4s1 3d10

c) number of paired electrons = 14 (in pairs) or 28 ( singles).

d) number of unpaired electrons = 1

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