Of the following compounds: 1. gold 2. mercury 3. Ag 4. W 5. Li 6. Be 7. nickel 8. oxygen When involved in an ionic compound the elements which have multiple charges and therefore must be indicated in Roman numerals (in ascending order) are: (Example: metal (V) non- metal)

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.

Which best explains why an iceberg floats?

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d