The
nonmetallic elements form ions by
valence electrons to complete their outer shell.
valence electrons an element has in its outer shell, the easier it is to complete.
the
electron shells an element has, the easier it is to fill its outermost shell.
reactivity in nonmetals
as you go from left to right in a group, and
bottom.
as you go from top to
intro
done

valence electrons an element has in its outer shell, the easier it is to complete.

The most electron shells an element has, the easier it is to fill its outermost shell.

Explanation:

Non metals atoms bond to other elements by sharing or completing the valance electrons in other element. This is easily made when the other element lacks a small number of electrons, for example with Hydrogen it has 1 valance electron because of that it is easier to bond with other elements.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.