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The Atomic Number of an Element X is 19. the Number of Electrons in Its Ion X+ Will Be: (A) 18 (B) 19 (C) 20 (D) 21 - Science

The atomic number of an element X is 19. The number of electrons in its ion X+ will be:
(a) 18
(b) 19
(c) 20
(d) 21

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Solution

(a) 18
Because X+ ion contains one less electron than X.

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APPEARS IN

Lakhmir Singh Class 10 Chemistry (Science)
Chapter 3 Metals and Non-metals
Q 46 | Page 169
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