1) There are many different models of atoms. What is the name of the current model of the atom that nearly all scientists agree with?
2)
a) Describe the plum pudding model.
b) Draw a diagram for the plum pudding model.
3) Ernest Rutherford and Marsden completed an experiment where they fired alpha particles at a sheet of gold foil.
a) What is an alpha particle?
b) What were the predictions of the outcome of the experiment according to the plum pudding model?
c) What did Rutherford and Marsden observe when they completed their experiment?
d) Their observations went against the plum pudding model. How did Rutherford change the model of the atom to account for these observations?
e) How does Rutherford’s modifications to the model of the atom explain what they observed?
4)
a) How did Bohr modify Rutherford’s model?
b) Why did he/ scientists believe that Rutherford’s model needed to be changed?
5) James Chadwick discovered that there was another subatomic particle that atoms were made from. What was the name and charge of this subatomic particle that he discovered?
6) The current model that we use is the nuclear model. Fill in the table below for the charges, mass and found (location within the atom) for the three different subatomic particles.
2)
a) Describe the plum pudding model.
b) Draw a diagram for the plum pudding model.
3) Ernest Rutherford and Marsden completed an experiment where they fired alpha particles at a sheet of gold foil.
a) What is an alpha particle?
b) What were the predictions of the outcome of the experiment according to the plum pudding model?
c) What did Rutherford and Marsden observe when they completed their experiment?
d) Their observations went against the plum pudding model. How did Rutherford change the model of the atom to account for these observations?
e) How does Rutherford’s modifications to the model of the atom explain what they observed?
4)
a) How did Bohr modify Rutherford’s model?
b) Why did he/ scientists believe that Rutherford’s model needed to be changed?
5) James Chadwick discovered that there was another subatomic particle that atoms were made from. What was the name and charge of this subatomic particle that he discovered?
6) The current model that we use is the nuclear model. Fill in the table below for the charges, mass and found (location within the atom) for the three different subatomic particles.
7)
a) If an electron absorbs electromagnetic radiation, what happens to the electron?
b) If an electron emits electromagnetic radiation, what happens to the electron?