Discovery and History. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. c) If Y is in period 3, what is the element? Barium Properties. What is Barium? Barium and its compounds may be found in nature or produced industrially for various uses. Atomic Number: 56: Element Symbol: Ba: Element Name: Barium: Atomic Weight: 137.327: Group Number: 2: Group Name: Alkaline earth metal: Period Number: 6: Block: s-block It is Group 2’s final stable element. Just the facts. Therefore you can directly look for atomic number 56 to find Barium on periodic table. Radium, which follows, is radioactive. The chemical symbol for Barium is Ba. Atomic Number of Barium. Another way to read periodic table and locate an element is by using group number (column) and period number (row). Represented by the symbol ‘Ba’, Barium is a group 2 element in the periodic table with atomic number 56. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Because of its high chemical reactivity, barium is never found in nature as a free element. Barium is a chemical element with the symbol Ba and atomic number 56. It reacts in water and forms hydroxide. Barium is a member of the alkaline-earth metals.The barium atom has a radius of 222.pm and its Van der Waals radius is 268.pm. Barium is a dense alkaline earth metal that occurs naturally in ore deposits and makes up 0.05% of the Earth’s crust (Genter 2001). Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). - P (phosphorous) d) What is the formula of the compound formed from the barium … Because of its high chemical reactivity, barium is never found in nature as a free element. - 5a. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. b) electron dot symbol ( i realize you cant show this but how many dots around the element) - 8 around the ion. Barium carbonate (BaCO 3) Barium chloride (BaCl 2) Barium fluoride (BaF 2) Barium nitrate [Ba(NO 3) 2] Barium oxide (BaO) Barium sulfate (BaSO 4) Barium sulfide (BaS) Interesting facts: All barium compounds that will dissolve in water or acid are poisonous; It oxidizes in air. a) what is the group number of the element? Properties, sources and uses of the element barium. Barium is a chemical element with symbol Ba and atomic number 56. Barium is a Block S, Group 2, Period 6 element. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal.Because of its high chemical reactivity, barium is never found in nature as a free element.Its hydroxide, known in pre-modern times as baryta, does not occur as a mineral, but can be prepared by heating barium carbonate. Barium sits close to the bottom of the periodic table’s Group 2. Because of its high chemical reactivity, barium is never found in nature as a free element. Group 2 elements are sufficiently reactive that the free metals are never found naturally; they are, however, much less reactive that Group 1 metals. The number of electrons in each of Barium's shells is 2, 8, 18, 18, 8, 2 and its electron configuration is [Xe] 6s 2. Van der Waals radius is 268.pm of its high chemical reactivity, barium is a chemical element with the Ba! Earth metal period 6 element - P ( phosphorous ) d ) what is formula. Barium on periodic table with atomic number 56 s final stable element number ( )! 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