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Two, like every other atom in Periodic Table column 2 (extended form).

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13y ago
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12y ago

Magnesium atoms have a +2 valence, 2 valence electrons in its outer shell.

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12y ago

Mg2+ has 8 valence electrons.

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Q: How many valence electrons does mg plus 2?
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Related questions

How many valence electrons are found in an atom of magnesium?

Mg has 2 valence electrons.


How many valence electrons does atom Mg 26 in the ground state have?

Mg always has 2 valence electrons


How many valence electrons are in an atom of magnesuim?

There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.


What happens to the valence electrons of magnesium oxide?

Mg donated two valence electrons to O.


How many electrons are in the valence shell for Mg?

Mg or Magnesium has 2 electrons in its Valence shell. If you have the right Periodic Table it should have numbers 1A, 2A,... 3B, ect listed above each column. These numbers represent the number of Electrons in the valence shell of all the elements in that Column.


How many valence electron does Mg ion contain?

Magnesium and the rest of the alkaline earth metals have two valence electrons.


How many valence electrons are in magnesium and what is the symbol?

Magnesium, an alkaline earth metal, has two valance electrons. The symbol of magnesium is, Mg ----


Which has the greater number of valence electrons Ca or Mg?

Both are in the same group; accordingly, they have the same number of valence electrons (2).


How many elements have two valence electrons?

Examples: Ca, Mg, Ba, Sr, Ra, etc.


What change in electron structure occur when Mg atom become a Mg ion?

Magnesium is a group 2A element, and has 2 valence electrons. Thus, for it to become an ion (Mg^2+) is loses those 2 valence electrons.


Which metal is more reactive Mg or Al?

Mg (with 2 valence electrons) is more reactive than Al (with 3 valence electrons) In the reactivity series magnesium come just above aluminium


Why Mg is harder than Na?

Mg. Mg has 2 valence electrons while Na only has 1 valence electron. Mg+2 also has a smaller ionic radius than Na+. Metallic bonds are stronger when metals have more valence electrons and smaller ion size. The metallic bond will be stronger for Mg. Thus, Mg will have the higher melting point.