Brainliesttt which families of metals are not so reactive, which allows them to exist by themselves in nature?

The answers are:1. Noble Gases,

2. The closer the element is to the noble gases the less reactive it is.Hope this helps !!! :)

easy

explanation:

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.