1. Atomic weight of fluorine
2. Number of proton and neutrons found in the nucleus of the element
3. And every number uniquely identifies each of the the elements
The answer should be; 11
The atomic mass number is found by combining the number of protons and neutrons
Hope this helps :)
Kinetic energy remains conserved in an elastic collision.
Answer:
no
Explanation:
it is human imagination about scary things that brought about ghost
