An atom has 26 electrons and its atomic weight is 56. The number … - Vidyadip

MCQ

An atom has $26$ electrons and its atomic weight is $56.$ The number of neutrons in the nucleus of the atom will be

A
$26$
✓
$30$
C
$36$
D
$56$

✓

Answer

Correct option: B.

$30$

b
(b) $_{26}{X^{56}}$ $A = P + N = Z + N = E + N$

$N = A - E = 56 - 26 = 30$

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