Question

1. step and compare models: towards the bottom, in the middle of the screen, look for the bolded title model. make sure the model \orbits\ is selected.

i. bohr model - build an atom with 7 protons, 7 neutrons, and then 7 electrons, and then draw the bohrs orbits model box below.
ii. heisenbergs model - underneath the model tab, select cloud, and then draw this same atom in heisenbergs cloud model box below.

1. step and compare again: review the three models above. they all represent the same atom.

i. describe, in terms of electrons, how bohrs model is different from rutherfords.
ii. describe, in terms of electrons, how heisenbergs model is different from bohrs.

1. it is time to design three stable atoms!

a. using protons, add anywhere from 1 to 10 protons to the nucleus. record that number below.
b. using neutrons, add as many as to the nucleus necessary until the atom is stable. record the
c. using electrons, add as many as to the orbitals necessary until the atom is neutral. record the
d. draw a picture of your stable nucleus, record what element it is, reset the simulator, and design the next atom.

Explanation:

i. In Rutherford's model, electrons are randomly scattered around the nucleus. In Bohr's model, electrons move in fixed - circular orbits at specific energy levels around the nucleus.
ii. In Bohr's model, electrons have definite orbits and positions. In Heisenberg's model, electrons are in a probability cloud, and their exact position at a given time cannot be precisely determined.

Answer:

i. In Rutherford's model, electrons are randomly placed; in Bohr's, they are in fixed orbits.
ii. In Bohr's model, electrons have defined positions; in Heisenberg's, they are in a probability cloud.