the halogens group\ngroup #: \ndraw the example atom and make the outermost electron(s) in bold.\nfamily…

the halogens group\ngroup #: \ndraw the example atom and make the outermost electron(s) in bold.\nfamily members (by symbol and atomic #):\nlist 5 properties/trends of the members: 1 \n2 \n3 \n4 \n5 \nwhat does the word halogen mean?\nwhat types of bonds do the halogens form?\ngo to www.periodictable.com and hover over each of the halogens. write down 2 or 3 interesting facts about them:\nthe noble gases group\ngroup #: \ndraw the example atom and make the outermost electron(s) in bold.\nfamily members (by symbol and atomic #):\nlist 5 uses of the members: 1 \n2 \n3 \n4 \n5 \nwhy are the nobel gases so unreactive?\nwhat are some special facts about helium?\ngo to www.periodictable.com and hover over each of the noble gases. write down 2 or 3 interesting facts about them

the halogens group\ngroup #: \ndraw the example atom and make the outermost electron(s) in bold.\nfamily members (by symbol and atomic #):\nlist 5 properties/trends of the members: 1 \n2 \n3 \n4 \n5 \nwhat does the word halogen mean?\nwhat types of bonds do the halogens form?\ngo to www.periodictable.com and hover over each of the halogens. write down 2 or 3 interesting facts about them:\nthe noble gases group\ngroup #: \ndraw the example atom and make the outermost electron(s) in bold.\nfamily members (by symbol and atomic #):\nlist 5 uses of the members: 1 \n2 \n3 \n4 \n5 \nwhy are the nobel gases so unreactive?\nwhat are some special facts about helium?\ngo to www.periodictable.com and hover over each of the noble gases. write down 2 or 3 interesting facts about them

Answer

Brief Explanations:

  • Halogen Group:
    • Family members are Fluorine (F, 9), Chlorine (Cl, 17), Bromine (Br, 35), Iodine (I, 53), Astatine (At, 85).
    • Properties/trends: High electronegativity, 7 valence - electrons, form salts with metals, are non - metals, reactivity decreases down the group.
    • “Halogen” means “salt - former”.
    • They form ionic bonds with metals and covalent bonds with non - metals.
    • Interesting facts: Fluorine is the most reactive non - metal; Chlorine is used in water purification.
  • Noble Gases Group (Group 18):
    • Family members are Helium (He, 2), Neon (Ne, 10), Argon (Ar, 18), Krypton (Kr, 36), Xenon (Xe, 54), Radon (Rn, 86).
    • Uses: Helium in balloons and airships; Neon in neon signs; Argon in light bulbs to prevent filament oxidation; Krypton in lasers; Xenon in high - intensity discharge lamps.
    • They are unreactive because they have a full outer electron shell, giving them a stable electron configuration.
    • Special facts about Helium: It is the second - lightest element and has the lowest boiling point of any element.
    • Interesting facts from the website: Neon glows red - orange in a vacuum discharge tube; Argon is the third - most abundant gas in Earth's atmosphere.

Answer:

  • Halogen Group:
    • Family Members: F (9), Cl (17), Br (35), I (53), At (85)
    • 5 properties/trends: High electronegativity, 7 valence electrons, form salts with metals, non - metals, reactivity decreases down the group
    • “Halogen” meaning: Salt - former
    • Bond types: Ionic with metals, covalent with non - metals
    • Interesting facts: Fluorine is most reactive non - metal; Chlorine used in water purification
  • Noble Gases Group (Group 18):
    • Family Members: He (2), Ne (10), Ar (18), Kr (36), Xe (54), Rn (86)
    • 5 uses: Helium in balloons/airships; Neon in neon signs; Argon in light bulbs; Krypton in lasers; Xenon in high - intensity discharge lamps
    • Unreactivity reason: Full outer electron shell
    • Special facts about Helium: Second - lightest element, lowest boiling point
    • Interesting facts: Neon glows red - orange in vacuum discharge tube; Argon is third - most abundant gas in Earth's atmosphere