Science, asked by ansafca9496, 9 months ago

An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
(a) Group 1
(b) Group 4
(c) Group 2
(d) Group 3

Answers

Answered by adarshbasappa900

3

Answer:

d) group 3 ...............

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