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.Know More
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
Gallium has three valence electrons. One can find this by looking at the electron configuration, which is Ga:[Ar] 4s2 3d10 4p1. In a chemical reaction, one can lose the electrons in the 4s and 4p subshell, and the total number of electrons in these subshells is three.Full Answer >
Halogens have seven valence electrons. These seven valence electrons allow the halogen group of elements to behave in a certain way and exhibit particular characteristics.Full Answer >
Mercury has two valence electrons, both of which sit in the atom's 6s shell. A valence electron is an electron in the outermost shell of an atom. Valence electrons are capable of bonding with the valence electrons of other atoms to form a compound.Full Answer >
Rubidium has one valence electron, which is located in the s-orbital of the atom's fifth energy level. Rubidium has a total of 37 electrons, illustrated in the element's electron configuration of 1s2 2s2p6 3s2p6d10 4s2p6 5s1.Full Answer >