- 1. About how many known elements are there?
A) 200
B) 140
C) 116
D) 90
- 2. True or false. The columns of the periodic table are called groups. Columns are vertical.
A) True
B) False
- 3. Which of these things will you NOT find in the periodic table?
A) Element Name
B) Element Symbol
C) Atomic Number
D) Atomic Orbital Radius
- 4. Which of these choices is NOT a family of elements?
A) Metal
B) Inert Gas
C) Halogen
- 5. True or false. Rows in the periodic table are called periods. Rows are horizontal.
A) True
B) False
- 6. Elements are arranged on the periodic table by...
A) Element Name
B) Atomic Number
C) Element Symbol
D) Neutrons
- 7. The atomic number of an element tells you the number of ________ in a neutral atom.
A) electrons and protons
B) neutrons and protons
C) electrons and neutrons
- 8. True or false. Although the order of elements is based on atomic number, vertical families share similar chemical properties.
A) True
B) False
- 9. True or false. You will find metals on the right side of the periodic table.
A) True
B) False
- 10. True or false. Hydrogen is an Alkali.
A) True
B) False
- 11. What element has an atomic number of 1 and a symbol of H?
A) Silicon
B) Iron
C) Hydrogen
D) Helium
- 12. What element has a symbol of Na?
A) Sodium
B) Nitrogen
C) Nickel
D) Cobalt
- 13. What element has an atomic number of 6?
A) Oxygen
B) Carbon
C) Chlorine
D) Neon
- 14. Which noble gas has a symbol of Ar?
A) Krypton
B) Argon
C) Radon
D) Xenon
- 15. What does an element's atomic number on the periodic table indicate?
A) Number of neutrons
B) Number of protons
C) Number of electrons
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