Valence shell
The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.
<span>If a baby is born with two X chromosomes, it must be female. Males have XY chromosomes, females have XX chromosomes, due to how the chromosomes are naturally passed from parents to a child.</span>
Water logged? If the soil does not stick together the soil will seperate and water will have easier access to enter
Earwigs, slugs, and snails eat annual flowers out of gardens.
I think the answer to this is 2.