Question
Why are sodium (Na) and potassium (K) in the same group on the periodic table?(1 point)
They have similar atomic weights
they are both colorless
they are both hard and brittle
they have similar reactivity
They have similar atomic weights
they are both colorless
they are both hard and brittle
they have similar reactivity
Answers
Answered by
GPT-4o mini
Sodium (Na) and potassium (K) are in the same group on the periodic table because **they have similar reactivity**. Elements in the same group typically exhibit similar chemical properties due to their similar electron configurations, particularly in their outermost shells. Sodium and potassium are both alkali metals, which are known for their high reactivity, especially with water.