An element A has mass number 24 contain 12 neutrons. What is the valency of A
Answers
Answered by
21
Element A is Magnesium.
Electronic Configuration-2,8,2
Valency- 2
Hope it helps!
Electronic Configuration-2,8,2
Valency- 2
Hope it helps!
Answered by
46
We know, Mass no = No. of protons + No. of neutrons.
24 = No. of protons + 12
No. of protons = 24-12=12
We know, in a stable atom, no of protons = no of electrons.
No of electrons = 12.
Therefore,
The electronic configuration will be 2,8,2
Hence valency of the atom is 2.
Hope it helped.
NISHTHA.
24 = No. of protons + 12
No. of protons = 24-12=12
We know, in a stable atom, no of protons = no of electrons.
No of electrons = 12.
Therefore,
The electronic configuration will be 2,8,2
Hence valency of the atom is 2.
Hope it helped.
NISHTHA.
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