The number of electrons in an ion Y²⁺ is 10. The atomic number of element Y is most likely to be :
(a) 8
(b) 12
(c) 10
(d) 14

Q. If the number of electrons in an ion Z^3– is 10, the atomic number of element Z will be :
(a) 7
(b) 5
(c) 10
(d) 8

Q. The number of protons in one atom of an element X is 8. What will be the number of electrons in its ion X²⁻?
(a) 8
(b) 9
(c) 10
(d) 11

Q. If the number of electrons in an ion $Z^{3-}$ is 10, the atomic number of element Z will be :

Q. The atomic number of an element Y is 17. The number of electrons in its ion Y⁻ will be:
(a) 17
(b) 18
(c) 19
(d) 20