One neutral atom of carbon has four valence electrons. An easy way to tell how many valence electrons an element has is to look at the periodic table and find the element's main group number. Carbon is in group 4, which means it has four valence electrons.Continue Reading
Valence electrons are the electrons found in an atom's outer electron shell. A neutral carbon atom has a total of six electrons, but not all six electrons are located in the same energy level. Two of them are located in the first shell, while the remaining four are located in the second shell. The four electrons in the second shell are the valence electrons.
Valence electrons are important because they help determine if an element is able to participate in a chemical reaction.Learn more about Atoms & Molecules
Each magnesium atom has two valence electrons. Valence electrons obtain their name from their location within an atom. These electrons are located within the outer layer of an atom.Full Answer >
An atom of boron has three valence electrons. The valence electrons of boron occupy the second orbit around the nucleus of the boron atom. Thus, the boron atom has an electronic configuration of [He] 2s2 2p1.Full Answer >
Atoms that typically form covalent bonds with each other have similar electronegativity, which expresses the atom's tendency to attract electrons, such as with carbon and hydrogen, which form methane. They stand in contrast to ionic bonds, where electronegativities are vastly different, as with sodium and chlorine, which combine to form table salt. These actually exist on a continuum with significant but lesser differences in electronegativity causing the formation of polar molecules.Full Answer >
Carbon dioxide is a compound formed by the sharing of two pairs of electrons between each of the two atoms of oxygen and one atom of carbon. This leads to the formation of a double covalent bond between the atoms of oxygen and carbon.Full Answer >