True or false water and salt are examples of elements

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

What is the lowest number energy level where a d sublevel is found