If the electronic configuration of an element is 2,8,2 to which period of the Modern Periodic Table does it belong?
Answers
Answered by
5
An element have electronic configuration 2,8,2
It is magnesium.
It had 2 free electrons.
So,it is lie in 2 group and 3 period.
Answered by
3
Answer:
1 . Since ‘X’ has three energy shells and period number of an element is equal to the number of energy shells, X belongs to 3rd period.
2 . X has 2 valence electrons it belongs to group 12.
3. Valency will be -2. To acquire noble gas configuration it will lose 2 electrons.
Similar questions
English,
6 months ago
English,
6 months ago
Chemistry,
1 year ago
Math,
1 year ago
Computer Science,
1 year ago