Question
Why are sodium (Na) and potassium (K) in the same group on the periodic table?(1 point)
Responses
They have similar atomic weights.
They have similar atomic weights.
They are both colorless.
They are both colorless.
They have similar reactivity.
They have similar reactivity.
They are both hard and brittle.
They are both hard and brittle.
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Responses
They have similar atomic weights.
They have similar atomic weights.
They are both colorless.
They are both colorless.
They have similar reactivity.
They have similar reactivity.
They are both hard and brittle.
They are both hard and brittle.
Skip to navigation
Answers
GPT-4o mini
Sodium (Na) and potassium (K) are in the same group on the periodic table because **they have similar reactivity**. Both elements are alkali metals and share similar chemical properties, including their tendency to lose one electron and form positive ions.