1. The nucleus of an atom is composed of: A. neutrons
B. protons
C. electrons
D. neutrons and protons

2. There is a relationship between the number of protons and the number of electrons found in an atom. Because of this, all atoms A. carry a net negative charge.
B. carry a net positive charge.
C. are electrically neutral
D. are variable in their electrical charge.

3. The chlorine (Cl) atom has a total of 17 electrons. How many electrons are found in the middle electron shell? A. 2
B. 8
C. 10
D. 17

(Optional) You may fill in the following information to E-mail the results of your test/quiz to your instructor.
Student Name:
Student E-mail Address:
Student ID #:
Professor's Name:
Professor's E-mail Address:
Comments about this test/quiz:

Copyright ©2001 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.
For further information about this site contact

Corporate Link