The smallest part of an element that can still be identified as that element is a(n)
(a) molecule
(b) proton
(c) electron
(d) atom

atom

Explanation:

(A) molecule is the a group of atoms which are bonded together,

(B) proton it is a particle that comprise an atom

(C) electron it is a particle that comprise an atom

(D) atom is the smallest part of an element that can still be identified

Hence the correct answer is D. The smallest part of an element that can still be identified as that element is an atom.  

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

i think its 100

i hope this !