Download CHAPTER 4 - REVIEW

CHAPTER 4 - REVIEW
Instructor: Dr. Farzaneh Paknia
1. Give the names of the elements that correspond to the following symbols: Kr, Te, I, Si. To which group
or family of elements does each element belong? Classify each element as a metal,nonmetal, or
metalloid.
2. Identify the elements that correspond to the following atomic numbers. To which group or family of
elements does each element belong?
a. 17
b. 55
3. Write the atomic symbols for each of the following isotopes.
a. the isotope of chlorine with 18 neutrons
b. number of protons = 26, number of neutrons = 31
4. How many protons, electrons, and neutrons are in the nucleus of 79Br? Show the correct atomic
symbol.
5. Indicate the number of protons and electrons for the ion S2.
6. What is the symbol for an ion with 63 protons, 60 electrons, and 88 neutrons?
7. Would you expect each of the following atoms to gain or lose electrons when forming ions? What ion is
the most likely in each case? Write the corresponding ionization equations.
a. N
b. Rb