Consider the following elements : Na, Ca, Al, K, Mg, Li (a) Which of these elements belong to the same period of the periodic table ?
Consider the following elements : Na, Ca, Al, K, Mg, Li
(a) Which of these elements belong to the same period of the periodic table ?
(b) Which of these elements belong to the same group of the periodic table ?
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(a) Same period (Third period): Na, Mg, Al.
(b) Same group (First group): Li, Na, K .
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