Question

Why 8th group is divided into three in periodic table?

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

Answer 2

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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• ✨✨


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