Valence Electrons Quiz

What are valence electrons?

• Electrons in the lowest occupied energy level of an element's atoms.

• Electrons in the highest occupied energy level of an element's atoms.

• Protons in the highest occupied energy level of an element's atoms.

• Neutrons in the outermost shell of an element's atoms.

What are valence electrons?

• Electrons in the lowest occupied energy level of an element's atoms.

• Electrons in the highest occupied energy level of an element's atoms.

• Protons in the highest occupied energy level of an element's atoms.

• Neutrons in the outermost shell of an element's atoms.

What does the number of valence electrons determine in an element's atoms?

• The atomic mass of the element.

• The physical state of the element at room temperature.

• The chemical properties of the element.

• The number of protons in the element's nucleus.

How can you determine the number of valence electrons in an atom of a representative element?

• By adding the number of protons and neutrons

• By looking at its atomic number

• By looking at its group number

• By counting the number of electron shells

How many valence electrons do atoms of the Group 1A elements have?

• Two

• Four

• Eight

• One

Atoms of which group are the only exceptions to the group-number rule for valence electrons?

• Group 1A

• Group 2A

• Group 4A

• Group 8A

How many valence electrons do carbon and silicon atoms have?

• Two

• Four

• Six

• Eight

According to the group-number rule, how many valence electrons do atoms of helium have?

• One

• Two

• Four

• Eight

How many valence electrons do atoms of all the other noble gases except helium have?

• Two

• Four

• Six

• Eight

Which electrons are usually the only ones involved in chemical bonds?

• Core electrons

• Valence electrons

• Free electrons

• Dative electrons