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1)What subatomic particle determines what element the atom is?

protons
neutrons
electrons
nucleus

2)Rutherford's model of the atom is best described as
A) a dense, positively charged nucleus with electrons moving around the nucleus.
B)a dense nucleus of electrons with very little empty space.
C)a dense, positively charged nucleus with electrons on its surface.
D)had a nucleus of electrons, about which positively charged particles would orbit.

3) An atom of oxygen with 8 protons, 8 neutrons, and 8 electrons would have a mass number of ______.
A)4
B)16
C)24

4)The current model of the atom suggests that ______.
A)an electron cloud surrounds the nucleus.
B)a proton cloud surrouds the nucleus.
C)electrons travel in a definite path around the nucleus.
D)the exact path of a moving electron can be predicted.

1 Answer

2 votes
1.electrons i think
2.D i think
3.C
4.c
User Pierre Laporte
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