ELECTRON CONFIGURATION
Highest occupied energy level of an element
equal to the period
for example, the highest occupied energy level of He is 1, Be is 2, Al is 3, Ca is 4, and Sn is 5
The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.
Answer:
The answer is indeed true
Explanation:
Answer:
Nitrogen
Explanation: nitrogen is around 70% of the air hope this helps god bless