Strontium

    Name: Strontium
    Symbol: Sr
    Number of Energy Levels: 5
    Electrons on the outer energy level: 2
    Atomic number: 38
    Atomic Mass: 87.62 Amu (Atomic Mass Units)
    Protons/Electrons: 38
    Neutrons: 50
    Density: 2.54 g/cm3
    Classification: Alkaline Earth

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      Rubidium

      Name: Rubidium
      Symbol: Rb
      Number of Energy Levels: 5
      Electrons on the outer energy level: 1
      Atomic number: 37
      Atomic Mass: 85.4678 Amu (Atomic Mass Units)
      Protons/Electrons: 37
      Neutrons: 48
      Density: 1.532 g/cm3
      Classification: Alkali Metal

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        Krypton

        Name: Krypton
        Symbol: Kr
        Number of Energy Levels: 4
        Electrons on the outer energy level: 8
        Atomic number: 36
        Atomic Mass: 83.8 Amu (Atomic Mass Units)
        Protons/Electrons: 36
        Neutrons: 48
        Density: 3.74 g/cm3
        Classification: Noble Gas

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          Bromine

          Name: Bromine
          Symbol: Br
          Number of Energy Levels: 4
          Electrons on the outer energy level: 7
          Atomic number: 35
          Atomic Mass: 79.904 Amu (Atomic Mass Units)
          Protons/Electrons: 35
          Neutrons: 45
          Density: 3.119 g/cm3
          Classification: Halogen

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            Selenium

            Name: Selenium
            Symbol: Se
            Number of Energy Levels: 4
            Electrons on the outer energy level: 6
            Atomic number: 34
            Atomic Mass: 78.96 Amu (Atomic Mass Units)
            Protons/Electrons: 34
            Neutrons: 45
            Density: 4.79 g/cm3
            Classification: Non-metal

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              Arsenic

              Name: Arsenic
              Symbol: As
              Number of Energy Levels: 4
              Electrons on the outer energy level: 5
              Atomic number: 33
              Atomic Mass: 74.9216 Amu (Atomic Mass Units)
              Protons/Electrons: 33
              Neutrons: 42
              Density: 5.72 g/cm3
              Classification: Metalloid

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                Germanium

                Name: Germanium
                Symbol: Ge
                Number of Energy Levels: 4
                Electrons on the outer energy level: 4
                Atomic number: 32
                Atomic Mass: 72.61 Amu (Atomic Mass Units)
                Protons/Electrons: 32
                Neutrons: 41
                Density: 5.323 g/cm3
                Classification: Metalloid

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                  Gallium

                  Name: Gallium
                  Symbol: Ga
                  Number of Energy Levels: 4
                  Electrons on the outer energy level: 3
                  Atomic number: 31
                  Atomic Mass: 69.723 Amu (Atomic Mass Units)
                  Protons/Electrons: 31
                  Neutrons: 39
                  Density: 5.907 g/cm3
                  Classification: Other Metals

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                    Fish with potatoes and vegetables

                    Preparation time: 10 min
                    Cooking time: 20 min
                    Serves: 2

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                      Zinc

                      Name: Zinc
                      Symbol: Zn
                      Number of Energy Levels: 4
                      Electrons on the outer energy level: 2
                      Atomic number: 30
                      Atomic Mass: 65.39 Amu (Atomic Mass Units)
                      Protons/Electrons: 30
                      Neutrons: 35
                      Density: 7.133 g/cm3
                      Classification: Transition Metal

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