What is Group (periodic table)?
{{no sources|date=February 2024}} A '''group''' is any column on the [[periodic table]]. Elements in the same group usually have similar [[Physical property|properties]], because they have the same number of [[electrons]] in the outermost [[electron shell]]. There are eight main groups of elements, numbered 1, 2, and 13-18. The other ten groups are transition metals: *Group 1: the [[alkali metal]]s ([[lithium]] family) *not including [[hydrogen]] *Group 2: the [[alkaline earth metal]]s ([[beryllium]] family) *Groups 3-12: the [[transition metal]]s *Group 13: the [[boron group|triels]] ([[boron]] family) *Group 14: the [[carbon group|tetrels]] ([[carbon]] family) *Group 15: the [[pnictogen]]s ([[nitrogen]] family) *Group 16: the [[chalcogen]]s ([[oxygen]] family) *Group 17: the [[halogen]]s ([[fluorine]] family) *Group 18: the [[noble gas]]es ([[helium]]/[[neon]] family) == Alkali Metals == See [[Alkali metal]] The most reactive metals are [[Lithium]] (Li), [[Sodium]] (Na), [[Potassium]] (K), [[Rubidium]] (Rb), [[Caesium|Cesium]] (Cs), and [[Francium]] (Fr) * never include hydrogen. == Alkaline Earth Metals == See [[Alkaline earth metal]]. They are [[Beryllium]] (Be), [[Magnesium]] (Mg), [[Calcium]] (Ca), [[Strontium]] (Sr), [[Barium]] (Ba), [[Radium]] (Ra) == Transition groups == See [[Transition metals]]. Transition Metals are the most number of elements in the periodic table. They are [[Iron]] (Fe), [[Copper]] (Cu), [[Zinc]] (Zn), [[Chromium]] (Cr), [[Cobalt]] (Co), [[Nickel]] (Ni), [[Manganese]] (Mn), [[Mercury (element)|Mercury]] (Hg), [[Scandium]] (Sc), [[Titanium]] (Ti), [[Vanadium]] (V), [[Silver]] (Ag), [[Gold]] (Au), [[Cadmium]] (Cd), [[Tungsten]] (W), [[Platinum]] (Pt), [[Yttrium]] (Y), [[Molybdenum]] (Mo) and others. == The noble gases == The [[noble gases]] are the 18th group in the periodic table. They are [[Helium]] (He), [[Neon]] (Ne), [[Argon]] (Ar), [[Krypton]] (Kr), [[Xenon]] (Xe), and [[Radon]] (Rn). They were previously called [[Inert gas]]es. [[Category:Periodic table]] [[Category:Gro