-they are inside the nucleus of an atom
- they have a relative charge of +1
- they have a relative mass of 1
A medium can be anything that a wave can pass through e.g the medium can be solid objects, air, water, etc.
By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.
The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.
Answer:
C is the answer because since it's chemistry particles expanding would most likely be your answer