Match the following families with their properties. There are two properties for each family. alkali metals
alkaline earth metals
halogens
noble gases

1 valence electron
very reactive nonmetals
reactive metals
7 valence electrons
8 valence electrons
very little reactivity
very reactive metals
2 valence electrons

alkali metals: 1 valence electron, very reactive metals

alkaline earth metals: 2 valence electrons, reactive metals

halogens: 7 valence electrons, very reactive nonmetals

noble gases: 8 valence electrons, very little reactivity

Explanation:

The groups increase by 1 valence electron as you move from left to right across the periodic table, skipping over the transition metals. The closer an element is to having a full octet of 8 valence electrons, the more reactive it will be. The alkali metals and halogens are both just 1 away from an octet -- alkali lose an electron, halogens gain one. This makes them very reactive.

im not exactly sure but i think its b!