1.

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

Answer»

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



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