Where would you look on the periodic table to find all the elements with the same number of valence electrons?

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Multiple choice — select the best answer

AA single column
BA single row
CA group of rows
DA cluster of elements in the center of the table
EA cluster of elements in the top-right corner of the table

✓ Correct answer: A. A single column Answer: A single column In the periodic table, columns are called groups or families. Elements within the same group have the same number of valence electrons, which contributes to similar chemical properties. Each row is called a period and contains elements with increasing atomic numbers, but varying valence electron counts.

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