Chemistry Unit 2

Which of the following is not a possible sublevel? 4f 1p 3d 2s

1p

Which of the following is not a possible sublevel? 1s 3p 4f 2d

2d

Which of the following is not a possible sublevel? 1s 3f 4d 2p

3f

What is the total number of electrons that can occupy the p sublevel?

6 electrons

The p sublevel has ________ orbitals that are ________-shaped.

three, dumbbell

What is the total number of electrons that can occupy the d sublevel?

10 electrons

What is the total number of electrons that can occupy the f sublevel?

14 electrons

In Rutherford's famous experiment, he shot heavy, fast moving, positive alpha particles at a thin gold foil. Based on Thomson's plum pudding model of the atom, what did Rutherford expect to happen, and why?

All the alpha particles would pass straight through the foil because of the even distribution of mass and charge throughout the atom

Match the scientist to his contribution to the atomic theory. 1.Bohr 2.Thomson 3.Rutherford a.Nucleus b.Electrons c.Electron energy levels

Bohr - C Thomson - B Rutherford - A

Modern atomic theory states that atoms are neutral. How is this neutrality achieved?

Equal number of protons and electrons

Rutherford's famous gold foil experiments shot heavy particles at a thin sheet of gold foil. What did he observe, and why did these observations eventually result in the addition of a nucleus to the atomic model?

Some of the heavy particles bounced off the foil, because there is a dense, positive area in the atom.

What evidence from J.J. Thomson's experiments with the cathode ray led to the plum pudding model of the atom?

The beam was attracted to a positive charge and repelled by a negative charge, showing that atoms contain small, negatively charged particles.

What is true when an ion is formed?

There is an unequal number of electrons and protons.

What is true of electrons?

They are negatively charged and located outside the nucleus.

What is true of protons?

They are positively charged and located inside the nucleus.

What is true of neutrons?

They have no charge and are located inside the nucleus.

Isotopes of the same element have different numbers of ________.

neutrons

What type of orbital is dumbbell-shaped?

p orbital

What type of orbital is spherical in shape?

s orbital

Match the scientist to his contribution to the atomic theory. 1.Rutherford 2.Dalton 3.Schrodinger a.Law of Multiple Proportions b.Electron cloud and orbitals c.Nucleus

Rutherford - C Dalton - A Schrodinger - B

Match the scientist to his contribution to the atomic theory. 1.Schrodinger 2.Rutherford 3.Bohr a.Electron cloud and orbitals b.Electron energy levels c.Nucleus

Schrodinger - A Rutherford - C Bohr - B