Greater than 3
Most metals and nonmetals form chemical bonds by transferring electrons to achieve a stable electron configuration with a filled outer shell, usually with 8 electrons. This transfer of electrons leads to the formation of ionic bonds between metals and nonmetals.
Covalent compounds form between nonmetals by sharing electron pairs to achieve a stable electron configuration. This sharing of electrons allows both atoms to fill their outer electron shells and form a stable molecule.
Every transition metal has a different number of electrons, they go from 21-30 electrons, then 39-48 elctrons, then 71-80 electrons, and 103-112 electrons.
The outer most electron shell of iodine atom contains 7 electrons.
4
1
7
Magnesium has two electrons in its outermost shell.
In a neutral carbon atom, there will be 4 electrons in the outer most valence shell.
The word "valance" is used to describe electrons in the outer-most energy level of an atom. Oxygen has six valance electrons.
The most stable atom is one with a full shell, so metals will lose electrons to drop down to a full shell, while nonmetals will gain electrons to fill their outer shell
7