Physical Science

Argon Symbol: Ar Atomic Number: 18 Atomic Mass: 39.984 amu (atomic mass units) Melting Point: minus 189.35°C (83.80K, minus 308.83°F) Boiling Point: minus 185.85°C (87.30K, minus 302.23°F) Number of Protons: 18 Number of Electrons: 18 Number of Neutrons: 22 Classification:…
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Thorium Symbol: Th Atomic Number: 90 Atomic Mass: 232.0381 amu (atomic mass units) Melting Point: 1750.0 C (2023.15 K, 3182.0 F) Boiling Point: 4790.0 C (5063.15 K, 8654.0 F) Number of Protons: 90 Number of Electrons: 90 Number of Neutrons:…
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The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth. -Niels Bohr – 1885 – 1962 FUNDAMENTAL MECHANICS In the early 1970’s, Quark Theory was relatively well…
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Xenon Symbol: Xe Atomic Number: 54 Atomic Mass: 131.29 amu (atomic mass units) Melting Point: minus 111.9 C (161.25 K, minus 169.42 F) Boiling Point: minus 108.1 C (165.05 K, minus 162.58 F) Number of Protons: 54 Number of Electrons:…
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William Optics are well versed in the manufacture of quality eyepieces, especially in the wide field arena. The 4mm UWAN (standing for ultra wide angle) is a dedicated planetary/lunar eyepiece that will provide high power views when used on any telescope,…
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Germanium Symbol: Ge Atomic Number: 32 Atomic Mass: 72.61 amu (atomic mass units) Melting Point: 937.4°C (1210.55 K, 1719.3201°F) Boiling Point: 2830.0°C (3103.15 K, 5126.0°F) Number of Protons: 32 Number of Electrons: 32 Number of Neutrons: 41 Classification: Metalloid Crystal…
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There hasn’t been much new in assistive devices for the blind in laboratory equipment in the last thirty years. Chemists can still use an opticon, an optical character reader, to read science books and periodicals. Even though voice activated software…
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Indium Symbol: In Atomic Number: 49 Atomic Mass: 114.818 amu (atomic mass units) Melting Point: 156.61°C (429.76 K, 313.898°F) Boiling Point: 2000.0°C (2273.15 K, 3632.0°F) Number of Protons: 49 Number of Electrons: 49 Number of Neutrons: 66 Classification: Metal Crystal…
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Life on earth depends on the existence of large molecules built around chains of carbon atoms.  Chains and rings are fundamental to the way life forms build themselves which puts carbon in a class of its own. With carbon having the…
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Rhenium Symbol: Re Atomic Number: 75 Atomic Mass: 186.207 amu (atomic mass units) Melting Point: 3180.0°C (3453.15 K, 5756.0°F) Boiling Point: 5627.0°C (5900.15 K, 10160.6°F) Number of Protons: 75 Number of Electrons: 75 Number of Neutrons: 111 Classification: Transition Metal…
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