Answer:
\boxed \huge{\green{QUESTION}}
QUESTION
\colorbox{blue}}{\green{How\:find\: the\: groups\: and \:periods \:of\: an\: Element}}
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Answer:
\boxed \huge{\green{QUESTION}}
QUESTION
\colorbox{blue}}{\green{How\:find\: the\: groups\: and \:periods \:of\: an\: Element}}