Hydrogen is a colorless gas with an atomic number of 1 and an atomic weight of 1.008. Hydrogen has a melting point of minus 259.2 degrees Celsius and a boiling point of minus 252.762 degrees Celsius. More »

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Hydrogen does not have a noble gas configuration because it its the first element on the periodic table. Only elements that fall after the noble gases on the periodic table can have noble gas configurations. More »

Hydrogen is a special element because it does not belong to any family. On the periodic table, hydrogen is listed at the top of group one, which contains all alkali metals, but it is not associated with the rest of those... More »

Periodic law, also known as Mendeleev's law, is the concept that the chemical and physical properties of elements are based on an element's atomic weight when arranged by increasing periodic atomic number. Periodic law w... More »

Krypton is a noble gas with an atomic number of 36 and a standard atomic weight of 83.79. Other chemical properties of Krypton include a heat of fusion of 1.63 kilojoules per mole. More »

To calculate the molecular weight of diethyl ether, determine the molecular formula, find the atomic weight of each atom, multiply the atomic weight the atom by the number of atoms of the element in the molecular formula... More »

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To draw a Bohr model of an atom, first find the number of protons, neutrons and electrons in the atom from its atomic weight and atomic number. After that, place the neutrons and the protons in the nucleus, and draw the ... More »