Question

how many electrons in 1 mole of ch4

Answer 1

hey there
one mole of methane has 10 electrons
hope it helps u

Answer 2

Since atomic number of hydrogen is 1, so it has 1 proton and 1 electron.
similarly, atomic number of carbon is 6, it has 6 protons and 6 electrons.
so total number of electrons in 1 molecule of CH4 is
$6 \times 1 + 4 \times 1 = 10$
Note because 1 Mole of any compound contains
$6.022 \times {10}^{23} \: molecules$
So 1 Mole CH4 contains
$10 \times 6.022 \times {10}^{23} \: electrons$
$= 6.022 \times{10}^{24} \: \: electrons$