The order of elements in the periodic table is based on a. the number of protons in the nucleus. c. the number of neutrons in the nucleus. b. the electric charge of the nucleus. d. atomic mass.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.