helium is in group 18 of the periodic table. how is helium different from the other elements in this group…

helium is in group 18 of the periodic table. how is helium different from the other elements in this group? (1 point)\nhelium atoms have 2 electrons, while atoms of the other elements in the group all have 18 electrons.\nhelium atoms have valence electrons in the first energy level, while atoms of the other elements in the group have valence electrons in the second energy level.\nhelium atoms have 2 valence electrons, while atoms of the other elements in the group all have 8 valence electrons.\nhelium atoms have a full outer energy level, while atoms of the other elements in the group do not have a full outer energy level.

helium is in group 18 of the periodic table. how is helium different from the other elements in this group? (1 point)\nhelium atoms have 2 electrons, while atoms of the other elements in the group all have 18 electrons.\nhelium atoms have valence electrons in the first energy level, while atoms of the other elements in the group have valence electrons in the second energy level.\nhelium atoms have 2 valence electrons, while atoms of the other elements in the group all have 8 valence electrons.\nhelium atoms have a full outer energy level, while atoms of the other elements in the group do not have a full outer energy level.

Answer

Brief Explanations:

Group 18 elements are noble - gases. Helium has 2 valence electrons filling its first energy level, while other group 18 elements have 8 valence electrons filling their outer energy levels.

Answer:

Helium atoms have 2 valence electrons, while atoms of the other elements in the group all have 8 valence electrons.