Question

1. An atom X has 8 electrons and 8 neutrons, find its atomic number and mass number. Also represent
the atom symbolically.
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Answer 1

Answer:

atomic no. = 8

Mass no. = 16

the atom is of oxygen

Answer 2

Answer:

atomic number = no.of electron

= 8

and atomic mass = no. of protons + no.of electron

=8+8

=16

and the element is O( oxygen)