Question

1. the family contains all nonmetals and is very reactive. (0.5 points) *

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

Explanation:

• Oxygen group: Contains non - metals (e.g., oxygen) and metalloids (e.g., polonium), not all non - metals.
• Transition metals: All are metals.
• Nitrogen group: Contains non - metals (e.g., nitrogen), metalloids (e.g., arsenic), and metals (e.g., bismuth).
• Alkali metals: All are metals.
• Carbon group: Contains non - metals (e.g., carbon), metalloids (e.g., silicon), and metals (e.g., tin).
• Actinides: All are metals (radioactive metals).
• Alkaline earth metals: All are metals.
• Boron group: Contains non - metals (e.g., boron), metalloids (e.g., aluminum is a metal, but some consider boron group with variable metal - non - metal nature, but not all non - metals).
• Noble gases: All non - metals but are very unreactive (inert).
• Halogens: Fluorine (\(F\)), chlorine (\(Cl\)), bromine (\(Br\)), iodine (\(I\)), astatine (\(At\)), tennessine (\(Ts\)) - all are non - metals and highly reactive as they need one more electron to complete their valence shell.
• Lanthanides: All are metals.

Answer:

Halogens