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)ResponsesThey 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.They have valence electrons in different energy levels.They have valence electrons in different energy levels.They have the same number of valence electrons.They have the same number of valence electrons.
1 answer
The correct statement that describes the atoms of nitrogen and oxygen is:
They have valence electrons in the same energy level.
Nitrogen (atomic number 7) and oxygen (atomic number 8) are both in Period 2 of the periodic table. They share the same principal energy level (n=2) for their valence electrons. Nitrogen has 5 valence electrons, while oxygen has 6 valence electrons, so they do not have the same number of valence electrons.
