Two representative elements, nitrogen and oxygen, are in the same period of the periodic table. Which statement correctly describes the atoms of the two elements?(1 point)

Question

Two representative elements, nitrogen and oxygen, are in the same period of the periodic table. Which statement correctly describes the atoms of the two elements?(1 point)
Responses

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

They have valence electrons in different energy levels.
They have valence electrons in different energy levels.

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

They have valence electrons in the same energy level.
They have valence electrons in the same energy level.

GPT-4o mini · Answer

The statement that correctly describes the atoms of nitrogen and oxygen is:

They have valence electrons in the same energy level.

Both nitrogen (atomic number 7) and oxygen (atomic number 8) are in period 2 of the periodic table, so they have their valence electrons in the same principal energy level (n=2). Nitrogen has 5 valence electrons, while oxygen has 6, so they do not have the same number of valence electrons, and they do not have the same number of total electrons.