Question

represent the atom N with mass number 14 and atomic number 7?​

Answer 1

Answer:

ᴛʜᴇʀᴇғᴏʀᴇ, ɴɪᴛʀᴏɢᴇɴ ʜᴀs: ᴀ. 7...

Answer 2

Answer:

Element A

Atomic number =7= Number of electrons =2,5

Valency of A=8−5=3

Element B

electronic configuration =2,8,8

Valency of B=zero

Element C has 13 electrons

electronic configuration =2,8,3

Valency of C=3

Element D

Protons =18= Electrons =2,8,8

Valency of D=Zero

Element E

electronic configuration =2,8,8,1

Valency of E=1

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