Question

The number of electrons, protons and neutrons of five elements are given below. :
P
R
T
Elements
Electrons
Protons
Neutrons
S
11
14
16
16
Q
18
18
22
17.
17
20
17
17
18
U
15
15
17
10
Making use of these data, find
(a) A pair of ions
(b) An atom of a noble gas
(c) A pair of isobar
(d) A pair of isotopes
(e) is element S a metal or non-metal?
(f) What would be the valency of element P listed in the above table?​

Answer 1

Answer:

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