Chemistry, asked by amritham788, 3 months ago

an element X has mass number 40 and contain 21 neutrons in its atom .To which group of the periodic table does it belong?

plz give explanation also
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Answers

Answered by 22AA
2

Answer:

yess!!!it is potassium which lie in s-block and and period 4

Answered by smosan75
37

Answer:

k pottasium..............

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