Answer:
D if im pretty sure
Explanation:
In 1909 he began experiments that were to change the face of physics. He discovered the atomic nucleus and developed a model of the atom that was similar to the solar system.
A mole is a unit to describe an amount of something/specific substance. Typically standard for measuring a large quantity of small entities like atoms, molecules, or other particles.
Answer:
2
Explanation:
The total number of atoms in silver sulfate Ag2SO4 is 2
