Which of the following statements does not describe the structure of an atom?   an atom has a small, dense center called the nucleus.   inside the nucleus of an atom are protons and electrons.   protons are positively charged sub-atomic particles.   electrons are negatively charged sub-atomic particles.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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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.