Question

match the element with the description
noble gas

1. he

alkali metal

1. be
2. li
3. f

alkaline earth metal

Explanation:

Helium (He) is a noble gas as it has a full outer - electron shell and is chemically inert. Lithium (Li) is an alkali metal, found in Group 1 of the periodic table and is highly reactive. Fluorine (F) is a halogen, found in Group 17 and is very reactive non - metal. Beryllium (Be) is an alkaline earth metal, found in Group 2 of the periodic table.

Answer:

noble gas - 1. He
alkali metal - 3. Li
halogen - 4. F
alkaline earth metal - 2. Be