Science, asked by shreyasakki1, 1 year ago

element X has mass number 40 and number of neutrons 20 right atomic number and electric configuration effects also write group number period and valency of x

Answers

Answered by arsh117
0
see it in science ncert

Rahul1708: this is not the answer
Answered by Shiv4225
0
answer in the picture.......
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