![]() ![]() As with Chemistry, the text of Wikipedia is available under the GNU Free Documentation License. As shown in Diagram 1, the symbol for barium is Ba. Ba Atomic number 56 Atomic weight 137.3 Melting point 725 o C,998. Other elements found in this group include magnesium ( atomic number-12), calcium (atomic number-20), and radium (atomic number- 88). The seven rows of the table are called a periodic table. The list of authors can be seen in the page history. It is a tabular display of chemical elements, arranged in order of atomic number in rows so that elements with similar atomic structure and recurring chemical properties appear in vertical columns. The original article was at List of elements by atomic mass. Series: Alkalis - Alkaline earths - Lanthanides - Actinides - Transition metals - Poor metals - Metalloids - Nonmetals - Halogens - Noble gasesīlocks: s-block - p-block - d-block - f-block - g-block Name | Atomic symbol | Atomic number | Boiling point | Melting point | Density | Atomic mass Standard table | Vertical table | Table with names | Names and atomic masses (large) | Names and atomic masses (small) | Names and atomic masses (text only) | Inline F-block | Elements to 218 | Electron configurations | Metals and nonmetals | Table by blocks | Alternatives ![]() Atomic weights of elements with atomic numbers 110-116 taken from this source. Barium is a chemical element of the periodic table with chemical symbol Ba and atomic number 56 with an atomic weight of 137.
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