Iron has two valence electrons. The atomic number or iron is 26, and it has 26 electrons and 26 protons. The electron configuration of iron is 1s22s22p63s23p63d64s2 or 2, 8, 14, 2 electrons per shell, so an atom of iron has two electrons in the outermost shell.Know More
When an atom of iron loses the two electrons from the last shell, it has a valency of +2, and when it loses two electrons from the 4s subshell and one electron from the 3d subshell, it has a valency of +3.
Iron is a transition metal and is placed in group eight or d-block and period four of the periodic table of elements. The melting point of iron is 2,800 degrees Fahrenheit.Learn more about Atoms & Molecules
The element manganese has seven valence electrons. The electronic configuration of manganese is [Ar] 3d5 4s2. The atomic number of manganese is 25 and it has 25 electrons out of which seven electrons are in the last shell or orbit.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 >
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 inner electrons require far higher energies to liberate, and do not figure in chemical reactions.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 >