Question

how many valence electrons in C3H5NH2?

Answer 1

Valence electron(electron in outermost shell) in C =4

Valence electron in H=1

Valence electron in N=5

now according to question,valence electron in $C_3H_5NH_2$ =

$\Rightarrow$ $4\times3+1\times5+5\times1+1\times2$

$\Rightarrow$ $12+5+5+2$

$\Rightarrow$ 24 Valence electrons