Chemistry, asked by Ganavi911, 3 months ago

an element x has mass number 40 and contains 21 neutrons in its atom to which group of the periodic table does its belong

Answers

Answered by ij20000005

1

Answer:

group 1

Explanation:

An element X having mass number 40 and contains 21 neutrons in its atom belongs to group 1 (2,8,8,1).

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