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Atomic models: democritus, dalton, thomson, rutherford

Study Slideshow

What letters represent the different energy sublevels in an atom?

s, p, d, f, g

15

What is the maximum number of electrons in the 4th level?

32

15

What is the maximum number of electrons in a p sublevel?

6

15

True or false: Atoms X (Z=20 A=40) and Y (Z=20 A=41) are isotopes.

True

15

True or false: Atoms X (Z=19 A=40) and Y (Z=20 A=40) are isotopes.

False

15

True or false: Are the atoms X (6 protons and 6 neutrons) and Y (7 protons and 5 neutrons) the same element?

False

15

True or false: Isotopes can be stable and unstable.

True

15

True or false: Stable isotopes break up over time emitting particles or electromagnetic radiation.

True

20

Is C-14 a radioactive isotope?

True

15

That is the distribution of electrons in the 3rd level?

2 6 10

15

Who said that "electrons can only occupy certain orbits in the atomic shell"?

Niels Bohr

20

Who said that "the positive charge of atoms in concentrated in a tiny central area"?

Rutherford

25