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Periodic Table of the Elements: Rubidium
(Encyclopedia)Periodic Table of the Elements: Rubidium ...rubidium
(Encyclopedia)rubidium ro͞obĭdˈēəm [key], metallic chemical element; symbol Rb; at. no. 37; at. wt. 85.4678; m.p. 38.89℃; b.p. 686℃; sp. gr. 1.53 at 20℃; valence +1. Rubidium is a very soft silver-white ...periodic law
(Encyclopedia)periodic law, statement of a periodic recurrence of chemical and physical properties of the elements when the elements are arranged in order of increasing atomic number. Such an arrangement in the for...periodic table
(Encyclopedia) CE5 periodic table, chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. Moseley. In the periodic table the elements are arrange...alkali metals
(Encyclopedia)alkali metals, metals found in Group 1 of the periodic table. Compared to other metals they are soft and have low melting points and densities. Alkali metals are powerful reducing agents and form univ...Periodic Table of the Elements: Hassium
(Encyclopedia)Periodic Table of the Elements: Hassium ...Periodic Table of the Elements: Helium
(Encyclopedia)Periodic Table of the Elements: Helium ...Periodic Table of the Elements: Holmium
(Encyclopedia)Periodic Table of the Elements: Holmium ...Periodic Table of the Elements: Hydrogen
(Encyclopedia)Periodic Table of the Elements: Hydrogen ...Periodic Table of the Elements: Indium
(Encyclopedia)Periodic Table of the Elements: Indium ...Browse by Subject
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