An atom with 3 protons and 4 neutrons
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An atom with 3 protons and 4 neutrons will have a valency of
Answered by admin @
Atomic number = Number of protons = 3.
Mass number = Number of protons + number of neutrons =3 + 4 = 7.
Electronic configuration of the atom is 2,1(K,L)
Hence, its valency is 1.
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