Sodium (Na) and potassium (K) are in the same group on the periodic table because they have similar reactivity. Elements in the same group often exhibit similar chemical properties due to having the same number of valence electrons. In the case of sodium and potassium, both are alkali metals with one electron in their outermost shell, leading to similar reactivity patterns.
Why are sodium (Na) and potassium (K) in the same group on the periodic table?(1 point) Responses They have similar reactivity. They have similar reactivity. They are both colorless. They are both colorless. They are both hard and brittle. They are both hard and brittle. They have similar atomic weights.
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