Chemistry
Grade-9
Easy
Question
How many valence electrons does Magnesium Have?
- 1 Valence electron
- 2 Valence electron
- 3 Valence electron
- 4 Valence electron
Hint:
Magnesium is group 2 element.
The correct answer is: 2 Valence electron
Atomic number of magnesium is 12, atomic mass is 24. Magnesium is placed in group 2. It has 2 electrons in its valence shell. All elements in group 2 has 2 electrons in their valence shell. Group 2 is also called alkaline earth metals.
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