The number of electrons and neutrons in an element is 18 and 20 respec – McqOptions

MCQOPTIONS

1.	The number of electrons and neutrons in an element is 18 and 20 respectively. Its mass number is -
A.	22
B.	2
C.	38
D.	20
E.	None of the above / More than one of the above
Answer» D. 20

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