Multiple choice

Which of the following elements, valence electrons and their position in the modern periodic table are correctly matched?

Element Valence electrons Group in PT
He 2 2
Na 1 1
Al 4 13
Cl 7 7

  1. He

  2. Na

  3. Cl

  4. Al

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is correctly matched. Valence electron is one and the group to which it belongs is one.

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