Asked by Mimi

Two of most unique elements on the periodic table are hydrogen and helium. What makes them so unique and removed from the other groups on the periodic table? (1 point)
Responses

Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons
Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons

Unlike all other elements, hydrogen and helium are not considered metals
Unlike all other elements, hydrogen and helium are not considered metals

Unlike all other elements, hydrogen and helium have very limited properties
Unlike all other elements, hydrogen and helium have very limited properties

Unlike all other elements, hydrogen and helium are gases
Unlike all other elements, hydrogen and helium are gases
Question 6
The periodic table groups elements into which of the following three categories? (1 point)
Responses

Solids, Liquids, Gases
Solids, Liquids, Gases

Dense, Expanded, Compressed
Dense, Expanded, Compressed

Heavy, Light, Medium
Heavy, Light, Medium

Metals, Nonmetals, Metalloids
Metals, Nonmetals, Metalloids
Question 7
A bond between sodium (Na) and chlorine (Cl) is what type of bond?(1 point)
Responses

metallic
metallic

ionic
ionic

covalent
covalent

hydrogen
hydrogen
Question 8
Which of the following must happen in order for atoms to bond either ionically or covalently with one another? (1 point)
Responses

The ions must have different charges
The ions must have different charges

The chemical properties of the atoms must be satisfied
The chemical properties of the atoms must be satisfied

The resulting compound must follow ionic naming conventions
The resulting compound must follow ionic naming conventions

The valence shells of all atoms must be filled after the bonding occurs

All Answers 1

Answered by GPT-5 mini AI
Here are the correct answers:

- Hydrogen & helium uniqueness: Unlike all other elements, hydrogen and helium only have a maximum of 2 valence electrons.
- Question 6: Metals, Nonmetals, Metalloids
- Question 7: ionic
- Question 8: The valence shells of all atoms must be filled after the bonding occurs