Answer:
copper
Explanation:
its an element, its not mixed with anything else
The axon is a thin fiber that carries signals away from the cell body.
Answer:

Explanation:
First you should calculate the volume of a big sphere,so:



Then you calculate the volume of a small spehre, so:



Finally you subtract the two quantities:


Answer:
The correct answer is 5s
Explanation:
Strontium atomic number = 38
Electronic configuration is 
As
orbital is valence orbital in strontium, the outer electrons exists in that orbital only.
Answer:
this showed that the cathode rays traveled in straight line