Question

An element having 3 protons and 4 electrons has ______ valancy.

a) 3 b) 7 c)1 d) 4​

Answer 1

Answer:

b)7

correct please tell .e

Answer 2

Answer:

$If \: an  \: atom  \: contains \:  3 protons  \: and \: 4 electrons</p><p> \: then \:  atom  \: will \: be \: of Lithium \:  element. \: The \: outermost \: orbit \: of \: Lithium  \: has \:  1 Electron  \: so \: it's  \: valency  \: could \: be \: +1 or -1$