Is Magnesium a Metal, Nonmetal or Metalloid?
Magnesium (Mg) is a metal — a reactive metal of group 2 with two valence electrons ready to bond. It sits in group 2, period 3, and is a solid at room temperature.
Looking for Magnesium's metal or nonmetal without wading through a whole chapter? Here is the direct answer first, then the tables and derivations examiners want to see. Every number on this page comes from the same engine that powers the interactive table. Need the whole picture instead — history, characteristics, uses, exam questions? The full Magnesium page is one click away.
The one-line answer, with reasons
Magnesium is a metal. Chemists decide by behaviour, not appearance: metals (like Magnesium) give up electrons, shine when freshly cut, and conduct heat and electricity; nonmetals take or share electrons and (as solids) break rather than bend. Magnesium checks every metal box — placed in the alkaline earth metal family of the table.
Magnesium's metal/nonmetal report card
| Property | Value | Typical of |
|---|---|---|
| Category | Alkaline earth metal | — |
| Phase at room temp | solid | metals are usually solid |
| Block | s-block | — |
| Group | 2 | — |
| Period | 3 | — |
The family it belongs to
The whole alkaline earth metal family shares one seating area of the table, and every member's family ID card is one click away — compare Magnesium with its upstairs or downstairs neighbour and the family pattern jumps out.
Students also ask
Is Magnesium a good conductor of electricity?
Yes — like other metals, Magnesium conducts electricity and heat well, thanks to its sea of free electrons.
Can a gas be a metal — like Magnesium?
Yes — being a metal or nonmetal is about bonding and electron behaviour, not state. At room temperature Magnesium is a solid, and that says nothing against its metallic character.