Answer:
A pure metal is any metal that has not been joined with any other metal
Explanation:
It is CO2 because the oxygen compounds is 2 out of three.
Answer: Mars
Explanation: The planet of Mars is the only planet of all that is terrestrial. Jupiter, Saturn and Neptune are all Jovian Planets. The answer to the question is Mars. Hope this answer helps you!
86198Rn => 24He + 84194Po
The radon is shown on the left, and the alpha particle, which is a helium nucleus, is shown of the right with the polonium.