Answer:
During chemical reactions, matter is neither
created nor destroyed; it just changes form.
Explanation:
Answer:
Isotopes of an element are atoms of the same element that have different number of neutrons.
Answer:
n= | Shell | Maximum Number of Electrons
1 | 1st Shell | 2
2 | 2nd Shell | 8
3 | 3rd Shell | 18
4 | 4th Shell | 32
Explanation: cause :)