The element copper has 11 valence electrons, distributed amongst the outermost d and s orbitals. These electrons are the ones that engage in chemical reactions that involve photons corresponding to visible light. The inn... More »

The atomic number for copper is 29, which means that it contains 29 electrons. As electrons are negatively charged, they need an equal number of positively charged protons to balance them out, which means that copper als... More »

Copper has 35 neutrons. Because its atomic number is 29, copper also has 29 protons and 29 electrons. Copper is a metal and is a member of group 11 on the periodic table. More »

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 oth... More »

There are multiple elements that have six valence electrons, including oxygen and sulfur. These elements can be found in the sixteenth group in the vertical column of the periodic table, also known as the chalcogens. More »

Tellurium has a total of six valence electrons. On the periodic table, tellurium sits in the sixth row below selenium. Tellurium's properties are intermediate between those of metals and nonmetals, making it a metalloid. 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 »