In the periodic table, elements that are in the same row (or period) have the same number of electron shells. Therefore, the correct response is:
They have the same number of electron shells.
Matter Interactions Online Practice
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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 valence electrons.
They have the same number of valence electrons.
They have similar physical properties.
They have similar physical properties.
They have similar reactivity.
They have similar reactivity.
They have the same number of electron shells.
1 answer