The electronic structure of a sodium atom can also be represented as in the diagram below. Na
sodium
atom
(1) Draw a similar diagram for a fluorine atom.
Draw similar diagrams to show the electronic structure of the particles in
sodium fluoride.
(Tot​

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.