Atom | P | Q | R | S |
No. of protons | 17 | 11 | 17 | 9 |
No. of neutrons | 18 | 12 | 20 | 10 |
No. of electrons | 17 | 10 | 17 | 10 |
A)
Cation Anion Pair of isotopes P Q P, Q
B)
Cation Anion Pair of isotopes Q S P, R
C)
Cation Anion Pair of isotopes R P R, S
D)
Cation Anion Pair of isotopes Q S Q, S
Correct Answer: B
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