5.1 quiz study guide

Question 1

what were the limitations of Rutherford’s atomic model?

Answer 1

○ it couldn’t explain the chemical properties of elements, only a few simple properties of atoms

Question 2

what did Bohr propose?

Answer 2

an electron is found only in SPECIFIC CIRCULAR paths (or orbits), around the nucleus

models electrons as orbiting the nucleus

Question 3

what does the quantum mechanical model determine about electrons in atoms?

Answer 3

it determines the allowed energies an electron can have AND how likely it is to find the electron in various locations around the atom’s nucleus

electron cloud

Question 4

how do two sublevels of the same principal energy differ from eachother?

Answer 4

○ each sublevel has orbitals with different shapes, and these shapes show where an electron is most likely to be found

Question 5

the energies of electrons are said to be quantized. explain what that means

Answer 5

electrons can only have specific energy levels, not just any value

they can move between these levels, but they can’t have energy in between them

Question 6

how can electrons in an atom move from one energy level to another?

Answer 6

It changes when it obsorbs or emits light