Showing only the valence electrons of each atom, draw a dot and cross diagram to show bonding present in sodium sulfide.

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

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.

The minerals found in bones are deposited by living cells called