1. The table contains ______ (called periods), which show the order of increasing atomic numbers.
A. rows
B. columns
2. The periodic table contains ______ (called groups or families), which list the elements with similar properties.
A. rows
B. columns
3. _____________ are dull, brittle, and do not conduct electricity.
A. Metals
B. Nonmetals
C. Metalloids
4. The masses of elements reported on the periodic table are average masses of the elements since atoms of the same element can have differing numbers of ___________.
A. neutrons
B. protons
C. electrons
5. True or false? Metals are located on the right side and at the center of the periodic table. Their properties include that they are dull, brittle, and do not conduct electricity.
A. true
B. false
6. The ______ are elements on the periodic table located between the metals and the nonmetals.
A. Halogens
B. Noble gases
C. Metalloids
D. Light metals
7. ________________ are located on the left and at the center of the periodic table. Their properties include that they are shiny, malleable, and conduct electricity.
A. Metals
B. Nonmetals
C. Metalloids

