1.10.1 Properties of alkali metals

    Cards (17)

    • Which group of the periodic table are alkali metals found in?
      Group 1
    • Match the property with its description:
      Group ↔️ 1
      Appearance ↔️ Shiny, silvery-white
      Hardness ↔️ Soft and easily cut
      Reactivity ↔️ Highly reactive
    • Order the filling of atomic orbitals according to increasing energy levels as shown in the image.
      1️⃣ 1s
      2️⃣ 2s
      3️⃣ 2p
      4️⃣ 3s
      5️⃣ 3p
      6️⃣ 4s
      7️⃣ 3d
    • How many electrons are in the outer shell of a sodium atom?
      1
    • Arrange the electron shells of a sodium atom in order of increasing energy
      1️⃣ First shell: 2 electrons
      2️⃣ Second shell: 8 electrons
      3️⃣ Third shell: 1 electron
    • What compound is formed when sodium reacts with chlorine?
      Sodium Chloride (NaCl)
    • Why are alkali metals highly reactive?
      One electron in outer shell
    • Alkali metals have relatively high melting and boiling points compared to other metals.
      False
    • Match each Group 1 metal with its application:
      Lithium ↔️ Batteries
      Sodium ↔️ Street lights
      Potassium ↔️ Fertilizers
    • Steps involved in the reaction between sodium and chlorine to form sodium chloride.
      1️⃣ Sodium loses its outer electron
      2️⃣ Chlorine gains the electron
      3️⃣ Sodium becomes a positive ion
      4️⃣ Chlorine becomes a negative ion
      5️⃣ Sodium and chlorine ions bond to form NaCl
    • What makes an alkali metal more reactive?
      Easier to lose electron
    • Potassium is essential for human health
      False
    • What is the color and appearance of alkali metals?
      Shiny, silvery-white
    • What is sodium primarily used for?
      Table salt and street lights
    • What is the hardness of alkali metals like?
      Very soft and easy to cut
    • Why are Group 1 metals often used in various applications?
      Reactivity and conductivity
    • What is lithium used for?
      Batteries for electronics