Chemistry, asked by userneha3536, 10 days ago

please answer it please

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Answered by kiranadnan50

0

12 * 45 ++5+5+5+5+5+5+5+6+78+8

Answered by basakpriyodipto

0

Explanation:

the element is Calcium (Calx, Ca).

proton number = 20,

electron number = 20

neutron number = 40-20 = 20 .

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