Question

hiii guies
it is a question of chemistry and chapter- * THE PERIODIC TABLE
yours question>>>>>>
WHAT IS MEANT BY PERIODIC TABLE BY : (A) A GROUP AND
(B) A PERIOD???
plz guies answer me fast and remember don't post irrelevant and altu - faltu••••• :) :*) *:) *:)
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Answer 1

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The periodic table is an arrangement of the elements in order of their atomic numbers so that elements with similar properties appear in the same vertical column or group. ... Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.