PLS PLS HELP ME!! Alkali metals (Group 1 elements in the periodic table) are known to be very reactive.
Which statement accurately explains the reactivity of the alkali metals?
A
Alkali metals are very reactive because they all are solids at room temperature.
B
Alkali metals have very low density, which makes them very reactive because they want to gain energy and become stable.
C
Alkali metals are all in Group 1 of the periodic table making them very reactive because the reactivity of a metal increases from right to left across each row.

D
Alkali metals are in Group 1 of the periodic table making them less reactive because the reactivity of a metal increases from left to right across each row.