Answer: the rarest element is Francium. J is not on the periodic table. also Dmitri Mendeleev proposed the periodic table.
Explanation: Kinda looked the last one up.
The answer would be B.
Semantics means the study of words and their meanings.
Hope this helped!
Answer: An electric charge
Explanation:
Because it is carried by charged particles
Hello! Your answer would be D. Interference
This is because interference causes vibration!!!