CHEMACTIVITY 4C: IONS, ISOTOPES, AND ATOMIC MASS
POSSIBLE CLICKER QUESTIONS
After CTQ 13:
1. Which of the following has more electrons than protons?
2. Bromine has 35 protons. How many electrons are in the Br ion?
3. What is the charge on the oxide ion, the ion formed by O.
a. 1-
4. When atoms form ions, they frequently have the same number of electrons as a neutral
5. Nitrogen has seven protons. How many neutrons are there in an isotope of nitrogen that
weighs 15 amu?
19
6. An isotope of chlorine has 17 protons and 18 neutrons. What is the mass number?
7. Which of the following is true for carbon?
8. What are the two numbers in each box on the periodic table?