'B' treat them all equally while providing for their different needs.
Hi there!
The oxygen we breathe is classified as Chalcogen and Nonmetal.
It is a gas.
And, the atomic weight is 15.9994
Hope this helps you!
~DL ☆☆☆
Answer:
1s2 2s2 2p6 3s2 3p6 4s2 3d10
The Battle of Gettysburg proved to be the turning point of the war.
TRUE
