What would be the resulting charge of carbon (C) after this element loses four electrons?

Carbon will become positively charged.

The charge of Carbon will be + 4.

Explanation:

The charge of Carbon will be + 4.

In the periodic table, elements that give out or lose electrons during electrochemical combinations are called electropositive elements. If carbon loses electrons during the chemical combination, Carbon will become positively charged, with a valency equal to the number of electrons that it lost.

This will make carbon have a charge of + 4