Atomic mass unit is the standard unit that is used for indicating mass on an atomic or molecular scale
<span>d)Electrons need specific amounts of energy to "jump" off an atom and be emitted.</span>
Medium about 3 second? Not sure lol just need more points honestly lol
Answer:
In a chemical reaction, there is a change in the composition of the substances; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
Explanation:
