Answer:
The number is mostly related to the mass or the weight of the element.
Explanation:
There are 22 pairs of <span>homologous chromosomes are found in human body cells.</span>
As with the properties of a substance, the changes that substances undergo can be classified as either physical or chemical. During physical changes a substance changes its physical appearance, but not its composition. The evaporation of water is a physical change.
(I searched that up but here’s an explanation with my own words that you can use):
Change in matter can be classified as a physical change as well as a chemical change due to the properties of substance. A physical change changes substance within its appearance but not its composition. For an example: The evaporation of water is a physical change.
There you go hopefully that helped
Answer:
it becomes a negstive charge
Repel because opposites only attract
