Answer:
B
Explanation:
Noble gases are in group 18 (neon, argon, etc)
The answer is D; Mass and Velocity
Answer:
Are difficult to compress.
Explanation:
Answer:Accounting for the sizes of protons, neutrons, and electrons, most of the volume of an atom—greater than 99 percent—is, in fact, empty space. ... The electrons that surround all atoms are negatively charged and cause atoms to repel one another, preventing atoms from occupying the same space.
Explanation: hope this helped
Answer:
D will brain cancer eventually be curable?
Explanation:
