_______ pts. out of 46 pts. = % = Name:

Advanced Chemistry: Quiz #1 (Atoms & Ions)

The following multiple choice questions are worth 2 pts. each. Circle the letter to the left of the best response.

1. The number of in an atom determines which element the atom is.

a. protons

b. neutrons

c. electrons

d. isotopes

e. energy levels

2. If two particles are isotopes it means that they:

a. are isoelectronic with a noble gas.

b. have the same number of neutrons.

c. have a different number of electrons, but have the same number of outer shell electrons.

d. have the same number of protons, but a different number of neutrons.

e. have the same number of protons, but a different number of electrons.

3. An iron ion is normally formed by:

a. removing protons from a neutral iron atom.

b. removing neutrons from a neutral iron atom.

c. adding protons to a neutral iron atom.

d. adding electrons to a neutral iron atom.

e. removing electrons from a neutral iron atom.

4. A chloride ion is normally formed by:

a. removing protons from a neutral chlorine atom.

b. removing neutrons from a neutral chlorine atom.

c. adding protons to a neutral chlorine atom.

d. adding electrons to a neutral chlorine atom.

e. removing electrons from a neutral chlorine atom.

5. How many neutrons are in an atom of sulphur-35? (1 pt.)

6. Write the symbols for three ions that are isoelectronic with argon (Ar). (3 pts.)

7. How many electrons are in a typical nitride ion? (1 pt.)

8. How many electrons are in a typical sodium ion? (1 pt.)

9. How many neutrons are in a typical zinc atom? (1 pt.)

10. Complete the table on the other side. (31 pts./ 1 pt. per box)