Question

An atom with 3 protons and 4 neutrons will have a valency of
(a) 3
(b) 7
(c) 1
(d) 4​

Answer 1

Answer:

Atomic number = Number of protons = 3. Mass number = Number of protons + number of neutrons =3 + 4 = 7. Hence, its valency is 1.

Answer 2

Answer:

Correct option is (c)

Means 1

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