The atomic number of f plus the atomic number of na equals the atomic number of this element

Explanation:

Atomic number means the sum of total number of protons present in an element.

Atomic number of fluorine is 9 whereas atomic number of sodium is 11.

Therefore, atomic number of F + atomic number of Na

                 = 9 + 11

                 = 20

It is known that calcium is the element that has atomic number 20. Its electronic distribution is 2, 8, 8, 2.

Thus, we can conclude that the atomic number of F plus the atomic number of Na equals the atomic number of element calcium.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

jjj89t'ji; it hink the answer is your mom is not si