You'll find more specific groups, like transition metals, rare earths, alkali metals, alkaline earth, halogens, and noble gasses. I think the most mysterious,beautiful and useful elements in our world is Group 3,4,5,6 and 7 elements.And know it is time to meet you up with Group 3 elements. Radon, helium, xenon, neon, krypton and argon are eight noble gases. It behaves like a semimetal or even a nonmetal. The alkaline earth metals are six chemical elements in group 2 of the periodic table.They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.. There is no element in period 3 group 6. The elements in Group IIIA (B, Al, Ga, In, and Tl) can be divided into three classes. Due to the halogens high reactivity, they tend to exist in nature as compounds and ions. It is just slightly less reactive than the active metals. Lithium (group 1 - IA) and Fluorine (group 17 - VIIA) Every element in the Carbon group (family) has how many valence electrons? The atomic number of each element increases by one, reading from left to right. Block Elements are organised into blocks by the orbital type in which the outer electrons are found. Each of the 13 elements has their own unique physical and chemical properties. Na is a very reactive element in Period 3, what other elements in Period 2 would be considered reactive? This is only two electrons away from having a full octet of eight electrons, so many of these elements form anions having -2 charges: oxide, O 2-; sulfide, S 2-, selenide, Se 2-, etc. Aluminum is the third most abundant element in the earth's crust. The Periodic Table: Illustration of every element in the order of its atomic number is given in the periodic table. The element at period 3, group 16 (called on very old periodic tables group VIA) is sulfur (S). 4 New Elements Are Added To The Periodic Table : The Two-Way With the discoveries now confirmed, "The 7th period of the periodic table of elements is … The Group 6A elements have six valence electrons in their highest-energy orbitals (ns 2 np 4). 1.Boron. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". Mercury (Hg) and bromine (Br) are the only elements in the periodic table that are liquids at room temperature. Members of a group typically have similar properties and electron configurations in their outer shell. There are multiple ways of grouping the elements, but they are commonly divided into metals, semimetals (metalloids), and nonmetals. 2. Boron is the only element in this group that is not a metal. They are nonreactive, mono-atomic elements with extremely low boiling points. Aluminium. Period A horizontal row in the periodic table. 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