I JUST NEED HELP Which group or groups of atoms are the only atoms with f orbitals?
Question 10 options:

A)

All noble gases

B)

All atoms heavier than barium (Ba)

C)

All atoms heavier than krypton (Kr)

D)

Lanthanides and actinides

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene