An element is represented by 40X20 answer the following questions what is the mass of 'X' how many neutrons are present in 'X' Give electronic confugaration of 'X' Give number of shells present in an atom of 'X'

An element is represented by 40X20 answer the following questions what

1.	An element is represented by 40X20 answer the following questions what is the mass of 'X' how many neutrons are present in 'X' Give electronic confugaration of 'X' Give number of shells present in an atom of 'X'
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