Rank the elements carbon, sodium, calcium, and iodine in order of _____________. decreasing number of valence
electrons
decreasing number of energy shells/levels
decreasing number of protons
decreasing number of electrons greatest abundance in living organisms
Answer:
decreasing number of valence electrons I, C, Ca, Na
decreasing number of energy shells/levels I, Ca, Na, C
decreasing number of protons I, Ca, Na, C
decreasing number of electrons I, Ca, Na, C
greatest abundance in living organisms C, Ca, Na, I
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