Carbon has 4 electrons in its outer shell. 4H atoms with 1 electron each covalently bond with the C atom to make a stable 8 electron shell on the carbon, and an outer 2 electron shell on each H.
Yhere is no way that C has 5 electrons.
Carbon has 6 not 5 electrons
what makes you think that methane only has 8 electrons?
think protons - carbon has 6 and they go nowhere
each hydrogen has 1 and they go nowhere
so methane has 10 protons and is electrically neutral so it must have 10 electrons