What does the majority of an atom's mass exist? a. in the electron cloud b. in the space between c. in neutrons d. in the nucleus

almost 99% of the mass of an atom is in its nucleus. D

obama was told in early july 2004 that he was chosen to deliver the address, and he largely wrote the speech himself, with later edits from the kerry presidential campaign.

11 d

12 a

13 d

14 b

explanation: