Suggest why the alkali metals become more reactive as you move down the table.

when anything gets exited they will become more reactive

1.solid

2.carbon dioxide

3.helium

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.