Answer:
False, I doesn't just disappear into thin air it dissolved so it mixes with the other thing. So now it is transparent AKA see through
Explanation:
Answer:
It belongs to the last group with all the gas whose last shell are common and they are unreactive unlike to other elements which reacts to complete there last shell with total 8 electrons . Helium and Neon have in common that they have there shell complete and they reacts very less or they don't.
Explanation:
Hope it is helpful....
Answer:No, they are not the same density
Explanation:
Caused partly by impacts with other small bodiesand by the gravitational influence of the major planets
Use the formula E=hv, h=plancks constant and v=frequency
use the formula c=v*lambda to find v
the answer will be 2.88*10^-23J