Which statement about the noble gases is most reliable?
the chemistry of the reactions of noble gases is not very interesting.
the noble gases are some of the most beautiful elements.
the noble gases are in the rightmost column of the periodic table.
the history of the discovery of noble gases is dull.

Drag each number to the correct location on the equation. each number can be used more than once, but not all numbers will be used. balance the equation with the coefficients. 2 3 4 5 kclo3 -> kcl + o2

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.