Nuclear reaction involves two reacting particles a heavy target nucleus and a light bombarding particle and produces two new particles a heavier product nucleus and a lighter ejected particle.
<span>Scientists use-
Hardness</span>
<span />Streak
Density
Specific Gravity
ColorCrystal Shape.LusterCleavage/Fracture
answers : the mole ratio between NH3 : NH2 is 2:1
Answer:
9. false
10. true
11. false
12. true
13. true
Explanation:
9. a Newton is the SI unit of force.
11. it says energy can't be created or destroyed
Answer:
The excitation energy
Explanation:
Excitation energy is the energy needed move an electron from a lower energy level (usually the ground state) to one of higher energy (an excited state).
