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Groups and periods Knowledge-Based Practice

Chemistry · The Periodic Table · Chemistry · Organization of the Periodic Table

1 Chemistry practice questions on Groups and periods. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which statement correctly distinguishes between groups and periods in the modern periodic table?

    • A) Elements in the same period have the same number of occupied electron shells, whereas elements in the same group share the same number of valence electrons.
    • B) Elements in the same period share similar chemical reactivity, whereas elements in the same group have identical atomic masses.
    • C) Elements in the same group possess the same number of occupied electron shells, whereas elements in the same period contain identical valence electron counts.
    • D) Elements in the same period increase in metallic character from left to right, whereas elements in the same group have consecutive atomic numbers.

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