Periodic Table Quiz

Periodic Table

• Elements are arranged on the periodic table in order of atomic number (number of protons) from least to most
• Elements with similar properties are lined up vertically in groups or families
• Alkali metals (Group 1) include: lithium, sodium, potassium, rubidium, caesium
• Alkaline earth metals (Group 2) include: beryllium, magnesium, calcium, strontium, barium
• Halogens (Group 17) include: fluorine, chlorine, bromine, astatine, iodine, and tennessine
• Noble gases (Group 18) include: helium, neon, argon, krypton, xenon, radon
• Metals are on the left side of the periodic table
• Non-metals are on the right side of the periodic table
• Metalloids lie between the metals and non-metals and exhibit properties of both
• Silicone is a metalloid that is used in electronics as a switch that can conduct electricity like a metal or resist electricity flow like a non-metal

Periodic Table Cell Information

• Atomic number is in the top left corner and indicates the number of protons
• Chemical symbol is the big capital letter in the middle (second letter is lowercase)
• Chemical name is below the symbol
• Atomic mass is the bottom number (sum of protons and neutrons)

Bohr-Rutherford Diagrams

• The centre circle indicates the nucleus with the number of protons and neutrons
• Each subsequent circle is an electron shell that can hold a certain number of electrons
• The first shell holds a maximum of 2 electrons
• The second shell holds a maximum of 8 electrons
• The third shell holds a maximum of 8 electrons
• The outermost shell is called the valence shell
• The number of neutrons is calculated as the atomic mass minus the number of protons

Example Bohr-Rutherford Diagrams

• Potassium (atomic number 19, atomic mass 39)

  • 19 protons
  • 19 electrons
  • 20 neutrons
  • Electron configuration: 2, 8, 8, 1 (valance shell has 1 electron)

• Magnesium (atomic number 12, atomic mass 24)

  • 12 protons
  • 12 electrons
  • 12 neutrons
  • Electron configuration: 2, 8, 2 (valence shell has 2 electrons)

Test your knowledge of the periodic table and its elements with this quiz. You'll explore the arrangement of elements by atomic number, the classification of groups such as alkali metals and noble gases, and the properties of metals, non-metals, and metalloids. Challenge yourself to identify key information about the elements!