The number of valence electrons in cobalt is two. This means two electrons are found in the outermost shell of a single atom of cobalt. More »

Platinum has two valence electrons. The amount of electrons found on the outer shell of an element is known as the valence number. These electrons determine the number of bonds that the element can form. More »

Magnesium has two valence electrons. Valence electrons determine the chemical properties of an atom. The periodic table of elements is used to find the number of valence electrons in an element. More » Science Chemistry Atoms & Molecules

The valence electrons, the outermost shell of electrons, are the largest determinant of how an atom reacts chemically to other substances in its environment. The number and arrangement of the outermost electron shell are... More »

The number of valence electrons in phosphorus is +5. Phosphorus, a non-metallic element discovered in 1669 by Hennig Brand, has the atomic symbol of P and an atomic number of 15. More »

The equation for formula charge is (number of valence electrons) - (electrons in lone pairs + 1/2 number of bonding electrons). This formula is used to calculate whether an atom in a compound is negative, positive or neu... More » Science Chemistry

Oxygen has six valence electrons and is assigned a valence number of 2. This means it needs two electrons to satisfy its bonding requirements. When these two electrons come from two hydrogen atoms, the three atoms togeth... More »