Protactinium

Protactinium . Chemical element of the periodic table whose symbol is Pa and its atomic number is 91. Protactinium is a silvery metallic element that belongs to the group of actinides , which has an intense metallic luster. Protactinium is, from the …

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Praseodymium

Praseodymium . Praseodymium is a chemical element in the periodic table whose symbol is Pr and its atomic number is 59. Summary  [ hide ]  1 Features 1 History 2 Applications 3 Effects of Praseodymium on health 4 Environmental …

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Polonium

Polonium. A highly radioactive chemical element that is a member of the chalcogen family. Its atomic symbol is Po , atomic number 84 and its use is very dangerous. The damage occurs by absorption of …

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Plutonium

Plutonium . Chemical element, symbol (Pu), atomic number 94. It is a silvery, reactive metal of the actinide series. It is one of the transuranic elements of the group of actinides of the …

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Palladium

Palladium . Chemical element, symbol Pd, atomic number 46 and atomic weight 106.4. It is a white and very ductile metal similar to platinum, which is followed in abundance and importance, discovered by William …

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Curium

Curium. Synthetic element of the periodic table with symbol Cm and atomic number is 96. bombarding produces plutonium with alpha particles ( ions of helium ). Summary [ hide ] 1 History 2 Properties 3 Preparation 4 Abundance and natural state 5 Uses 6 Health effects 7 Environmental effects 8 External links 9 Sources History Curium was …

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Chrysotile

Chrysotile . or white asbestos is a mineral from the group of Silicates, subgroup Philosilicates and within them is a serpentine-kaolinite. It is a magnesium hydroxy-silicate, with partial substitutions of magnesium for iron. All …

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