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Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. [8] Rubidium is the first alkali metal in the group to have a density higher than water.
Element Rubidium (Rb), Group 1, Atomic Number 37, s-block, Mass 85.468. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Rubidium is a chemical element with symbol Rb and atomic number 37. Classified as a n alkali metal, Rubidium is a solid at room temperature. 37. Rb. Rubidium. View All Properties. He. Li. Be. C. N. O. F. Ne. Na. Mg. Al. Si. P. S. Cl. Ar. K. Ca. Sc. Ti. V. Cr. Mn. Fe. Co. Ni. Cu. Zn. Ga. Ge. As. Se.
Oct 10, 2023 · Rubidium is a soft, silvery-white metallic element of the alkali metal group, known for its strikingly colorful flame test. People encounter rubidium in specialized applications such as atomic clocks, medical research, and occasionally in fireworks for its characteristic red-purple flame coloration.
Rubidium is the 37th element in the periodic table and has a symbol of Rb and atomic number of 37. It has an atomic weight of 85.4678 and a mass number of 85. Rubidium has thirty-seven protons and forty-eight neutrons in its nucleus, and thirty-seven electrons in five shells.
Article History. Key People: Robert Bunsen. Gustav Kirchhoff. Related Topics: chemical element. alkali metal. rubidium (Rb), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group. Rubidium is the second most reactive metal and is very soft, with a silvery-white luster.
Symbol: Rb. Atomic Number: 37. Atomic Mass: 85.4678 amu. Melting Point: 38.89 °C (312.04 K, 102.002 °F) Boiling Point: 688.0 °C (961.15 K, 1270.4 °F) Number of Protons/Electrons: 37. Number of Neutrons: 48. Classification: Alkali Metal. Crystal Structure: Cubic. Density @ 293 K: 1.532 g/cm 3. Color: silver. Atomic Structure. Isotopes. Facts.
Get the facts about element Rubidium (Rb) [37] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.
Summary. Atomic Number – Protons, Electrons and Neutrons in Rubidium. Rubidium is a chemical element with atomic number 37 which means there are 37 protons in its nucleus. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.
Properties. Rubidium can be liquid at room temperature. It is a soft, silvery-white metallic element of the alkali group and is the second most electropositive and alkaline element. It ignites spontaneously in air and reacts violently in water, setting fire to the liberated hydrogen.
