Answer:
i answered this question not that long ago....it's D
Explanation:
I’m not sure I think if you google it it should pop up or go on quizlet sorry
Efficiency is completing a task as fast a possible the the least amount of effort.
Elements<span> in the same </span>group<span> in the periodic table </span>have similar chemical properties<span>. This is because their atoms </span>have<span> the same number of electrons in the highest occupied energy level. </span>Group<span> 1 </span>elements<span> are reactive metals called the alkali metals.</span>Group<span> 0 </span>elements<span> are unreactive non-metals called the noble gases.
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