Largest atomic radius in period 4 row

hi

Explanation:

Thus, helium is the smallest element, and francium is the largest.

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.

your answer is c) plasma

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