Isotopes of the same element will have a different number of neutrons, but the same number of protons. true or false

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.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.