Answer:
group 1 elements(hydrogen,sodium,etc)
Explanation:
bexause if noticed all the element in the same group have the same eletron in thr outer most shell for example the group 1 elements are said to have 1 outermost elect ron which make them react so the same
It's a base because it increases the concentration of hydroxid ions
Answer:
Air
Explanation:
It takes up space/ the rest do not
Polar will always have the higher boiling point because they have strong van der waal forces
