An atom has a negative charge. Which of the following must have occurred?
A)It lost a neutron.
B)It lost an electron.
C)It gained a proton.
D)It gained an electron.
An atom has a negative charge. Which of the following must have occurred?
A)It lost a neutron.
B)It lost an electron.
C)It gained a proton.
D)It gained an electron.