The number of neutrons in the nucleus of an atom can be determined by

a. adding the atomic number to the mass number

b. subtracting the atomic number from the mass number

c. adding the mass number to the atomic mass

d. subtracting the mass number from the atomic number

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Asolid that forms and separates from a liquid mixture is called

How is the atomic number of a nucleus changed by alpha decay