Based on Chromium's position on the periodic table, which statement describes the element chromium (Cr), atomic number 24?
A. chromium is a nonmetal and therefore a good conductor of heat and electricity
B. chromium is a metal that is more reactive than potassium
C. chromium is a metal that is less reactive than sodium
D. chromium is a noble gas that is not reactive

C. chromium is a metal that is less reactive than sodium.

Explanation:

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In this case, since chromium is in period 4 group VIB we infer it is a transition metal which slightly reacts with acids and poorly reacts with oxygen and other oxidizing substances. Thus, in comparison with both sodium and potassium which are highly reactive even with water as they get on fire, we can say that it is less reactive than both potassium and sodium, therefore, answer is: C. chromium is a metal that is less reactive than sodium.

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gas

explanation:

smoke is the matter of a gas