4
Four.
Carbon needs to gain four electrons in order to obtain a noble gas electron configuration, similar to that of neon. This will result in a full valence shell with eight electrons, fulfilling the octet rule.
Carbon atoms do not gain electrons to form a covalent bond. Carbon atoms form four covalent bonds by sharing its four valence electrons with the valence electrons of other atoms. These can be single bonds, in which one pair of electrons is shared; double bonds, in which two pairs of electrons are shared; or triple bonds, in which three electrons are shared; or a combination of these.
4 but it will need energy, so carbon gain 4 electrons to achieve a noble gas configuration.
An element that has two outer electrons is carbon. Carbon would not use the energy to gain six more electrons when it can easily get rid of the two outer electrons.
There are six electrons in two shells.In order to stable carbon, it take electrons from nearest noble gas to stable the carbon.It order to stable carbon it gain -4 electrons from the nearest noble gas Neon.
Carbon is the "utility player" of chemistry, and can bond in many different ways with other elements. It generally shares electrons covalently with other non-metals, usually hydrogen, oxygen, and nitrogen. It doesn't typically lose or gain them (but can in certain situations.)
4
Carbon can both gain and lose electrons. We "see" it every day in the form of compounds or in pure substance.
Se will gain electrons
It depends on the charge of the carbon ion. Carbon ions can have different charges (e.g., +1, +2, -3), so the number of electrons would vary accordingly. For example, if the carbon ion has a +4 charge, it would have 4 fewer electrons than a neutral carbon atom.
Carbon typically forms no ions because it is an element with 6 protons and 6 electrons, resulting in a neutral charge. However, in certain chemical reactions, carbon can gain or lose electrons to form ions.