Start with these atoms... Draw the Lewis structure for the starting atoms
Add hydrogen atoms to
satisfy the octet rule
How many H’s are needed?
Draw the
structural
formula for the molecule
Write the molecular formula for the molecule
2 carbon atoms bonded together
1 carbon atom and 1 oxygen atom
1 carbon atom and 1 nitrogen atom
1 carbon atom and 2 oxygen atoms
© 2004 Key Curriculum Press.

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 chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

How can the periodic table be used to predict the behavior of elements?