Q-An element (e) has 7 element in the M-shell of it's alom. If the number of neutrons is 18, Calculate :
I) Atomic number
ii)Mass number
iii) No. of and No. of electrons and Protrons
b) Give a symbolic Reprentation of the element and it's elec configuration
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dndjdbdndbdbdnkdndkdndknddkdjdknd
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