Question

Potassium and nickel are in the same row of the periodic table. What do these elements have in common?(1 point)
Responses

They have the same number of electron shells.
They have the same number of electron shells.

They have similar reactivity.
They have similar reactivity.

They have the same number of valence electrons.
They have the same number of valence electrons.

They have similar physical properties.
They have similar physical properties.
Remaining Attempts : 3

Answers

GPT-4o mini
The correct response is:

**They have the same number of electron shells.**

Potassium (K) and nickel (Ni) are in the same row (period) of the periodic table, which means they have the same number of electron shells. Potassium is in Group 1 and nickel is in Group 10, so they do not share similar reactivity or the same number of valence electrons. They also have different physical properties.