Answer: Elastic
Explanation: Both Objects had there momentum and kinetic energy conserved.
Answer:
The mass number is defined as the total number of protons and neutrons in an atom.
Explanation:
Answer:
Our atmosphere is a mixture of gases that surround Earth. It is kept in place by the pull of Earth's gravity. If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere.
Explanation:
The electron affinity increases from left to right
