The periodic table organizes chemical elements into vertical columns known as groups or families, where members share similar valence electron configurations and chemical behaviors. Match each periodic table group on the left with its defining chemical characteristic on the right.
- Alkali Metals (Group 1)Contains 1 valence electron and reacts vigorously with water to produce basic solutions and hydrogen gas.
- Alkaline Earth Metals (Group 2)Contains 2 valence electrons and readily loses both electrons to form divalent cations.
- Halogens (Group 17)Contains 7 valence electrons and readily gains 1 electron to form salts with metals.
- Noble Gases (Group 18)Possesses a complete outer electron shell and exhibits extreme chemical stability or inertness.
Cevap
Alkali Metals match with having 1 valence electron and reacting vigorously with water; Alkaline Earth Metals match with having 2 valence electrons and forming cations; Halogens match with having 7 valence electrons and forming salts; Noble Gases match with possessing a complete valence shell and extreme chemical inertness.
The periodic table organizes elements by valence electron configurations. Group 1 elements (Alkali Metals) have 1 valence electron and react vigorously with water. Group 2 elements (Alkaline Earth Metals) have 2 valence electrons and form cations. Group 17 elements (Halogens) have 7 valence electrons and readily gain an electron to form salts. Group 18 elements (Noble Gases) have complete valence shells, making them chemically inert.
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Periodic Table Groups and Valence Electron Trends