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Why are sodium (Na) and potassium (K) in the same group on the periodic table? (1 pc
O They have similar reactivity.
O They are both colorless.
They have similar atomic weights.
They are both hard and brittle.

Respuesta :

Answer:

they have similar reactivity

Explanation:

they are both in the same group so that means they have the same amount of valence electrons they shoudl have different amount of electron shells sodium would be more reactive by a little bit.

JermanyMcCravy

Answer:

They have similar reactivity

Explanation:

They share the same column on the periodic table and because they are within the same group

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