About Us  |  Links

1. What do you NOT find in a nucleus?
Protons Neutrons Electrons Quarks None of these

2. Which of these is a pure substance?
Blood Ocean Brass Wine Table Salt (NaCl)

3. Which of these has a neutral charge?
Protons Neutrons Electrons Quarks None of these

4. Which of these is not an element?
Uranium Plutonium Iron Gold Brass

5. Which of these has 23 protons?
Scandium Titanium Vanadium Chromium None of these

Name:
E-mail:


Last 15 Challengers
*

news | about us | contact us
tutorials index | organic chemistry | practice tests | online quizzes | reference tools
site copyright (c) 2002 to neopages.com

privacy policy