A) The alkali metal atoms forms a +1 ion, while the alkaline eaeth metal atom forms a +2 ion.
Answer:
The slope of the line is 
.
Explanation:
The slope of the line (
) is the change in dependent variable (
) divided by the change in independent variable (
):
(1)
If we know that 
and 
, then the slope of the line is:
The slope of the line is .
Answer:
Water moves from the ground or oceans into the atmosphere through a process called evaporation. It's a process that happens on a molecular level when the molecules of water are really energized and rise into the air. Now you've got water in the air and water on land. Organisms all over the Earth need water to survive.
Explanation:
: If you mean table salt i.e. sodium chloride. It is held together by ionic bonds between sodium (Na+) and chloride (Cl-) ions. The sodium ions have a positive charge and the chlorine ions have a negative charge. Since opposite charges attract, they form ionic bonds. Ionic bonds are nothing more than the attraction between positive and negative ions.
