Question

1. members of this family all have 1 valence electron. (0.5 points) *

halogens
noble gases
nitrogen group
lanthanides
alkali metals
alkaline earth metals
oxygen group
actinides
transition metals
carbon group
boron group

Explanation:

• Halogens have 7 valence electrons.
• Noble gases have 8 (or 2 for helium) valence electrons.
• Nitrogen group has 5 valence electrons.
• Lanthanides have variable valence electrons but not all have 1.
• Alkali metals (Group 1 in the periodic table) have 1 valence electron.
• Alkaline earth metals have 2 valence electrons.
• Oxygen group has 6 valence electrons.
• Actinides have variable valence electrons but not all have 1.
• Transition metals have variable valence electrons but not all have 1.
• Carbon group has 4 valence electrons.
• Boron group has 3 valence electrons.

Answer:

Alkali metals