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2 October, 12:03

Which of these pairs of elements have the same number of valence electrons?

a. Oxygen and BromineB) Carbon and LeadC) Oxygen and CarbonD) Sodium and Magnesium

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  1. 2 October, 12:31
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    elements present in the same group in the periodic table will have same valence electrons

    now look at periodic table and find out yourself
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