Sodium (Na) and potassium (K) are in the same group on the periodic table because they have similar reactivity. Elements in the same group tend to have similar chemical properties due to having the same number of valence electrons. In the case of sodium and potassium, both are alkali metals in Group 1, and they exhibit similar reactivity patterns, especially with water and halogens.
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 have similar reactivity.
They have similar reactivity.
They are both colorless.
They are both colorless.
They are both hard and brittle.
1 answer