- 1. About how many known elements are there?
A) 140
B) 90
C) 200
D) 116
- 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) Atomic Number
B) Element Name
C) Atomic Orbital Radius
D) Element Symbol
- 4. Which of these choices is NOT a family of elements?
A) Halogen
B) Metal
C) Inert Gas
- 5. True or false. Rows in the periodic table are called periods. Rows are horizontal.
A) False
B) True
- 6. Elements are arranged on the periodic table by...
A) Neutrons
B) Atomic Number
C) Element Name
D) Element Symbol
- 7. The atomic number of an element tells you the number of ________ in a neutral atom.
A) neutrons and protons
B) electrons 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) False
B) True
- 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) Hydrogen
C) Iron
D) Helium
- 12. What element has a symbol of Na?
A) Nitrogen
B) Sodium
C) Cobalt
D) Nickel
- 13. What element has an atomic number of 6?
A) Chlorine
B) Carbon
C) Oxygen
D) Neon
- 14. Which noble gas has a symbol of Ar?
A) Argon
B) Radon
C) Krypton
D) Xenon
- 15. What does an element's atomic number on the periodic table indicate?
A) Number of protons
B) Number of neutrons
C) Number of electrons
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