Question

Number of electrons and neutrons in an atom are 3 and 4

respectively. Find its:

(a) Atomic number

(b) Mass number?​

Answer 1

Answer:

a) 7

b) 14

Explanation:

Here, atomic number means, the addition of no. of neutrons and electrons

and

if we double the atomic no. then we get their atomic mass no.

Answer 2

Answer:

a) The atomic number is 3 which is Li(Lithium)

b) It's mass number will be 7.

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