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"The oxidation number method, also called oxidation states, keeps track of electrons gained when a substance is reduced and the electrons lost when a substance is oxidized. Each atom in a neutral mole ...
"The Nitrogen family, the Carbon family and the Boron family are found in the p-block of the Periodic Table. The Nitrogen family is group 13, while the Carbon family is group 14 and the Boron family i ...
"Boiling point elevation is a colligative property of solutions. Solutions’ boiling points are higher than that of the solute or solvent because the vapor pressure of solutions is lower. A boiling poi ...
Video Química
"Boiling point is the particular temperature where vapor pressure equals to of a liquid equals to the surrounding environmental liquid. At this temperature the liquid begins to bubble as liquid below ...
Video Biología
"Organic compounds are compounds composed of carbon, hydrogen and often oxygen or nitrogen. Organic compounds are named so because they are associated with living organisms. Several important types o ...
Video Física
"Orbital diagrams are pictorial descriptions of the electrons in an atom. Three rules are useful in forming orbital diagrams. According to the Auf Bau Principle, each electron occupies the lowest ener ...
Video Química
"Nuclear stability is what makes certain isotopes radioactive. An isotope is unstable if it has a ratio of protons to neutrons that isn’t within what is called the “band of stability.” Elements with a ...
Video Química
"There are two types of beta decay: beta-plus decay and beta-minus decay. In beta plus decay the nucleus emits a positron (a positively charged electron) and a neutrino (a proton that changed into a n ...
Video Física
"Nuclear reactions differ from other chemical reactions in that they involve changing the structure of the nucleus. Types of nuclear reactions include alpha decay, beta decay and gamma decay. Often pa ...
Video Química
"The noble gases are located in the last column on the right side of the periodic table and are some of the most stable elements in the periodic table. The noble gases include helium, neon, argon, kry ...
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