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Carbon

2013-11-13 来源: 类别: 更多范文

Carbon The element I have chosen to write about is the element carbon. Carbon is a nonmetallic element that has the symbol C corresponding to it on the periodic table. Nobody knows where carbon was discovered and nobody also knows when it was discovered either. We are well aware that ancient people. The name carbon comes from the Latin term Carbo, which means charcoal. Carbon is a group fourteen element. It has an atomic number of six. Every carbon atom contains six positively charged particles called protons in its nucleus and six or more neutral particles called neutrons. Six negatively charged electrons surround the carbon atom’s nucleus. Carbon has four electrons in its valence shell (outer shell). Since this energy shell can hold eight electrons, each carbon atom can share electrons with up to four different atoms. 1s 2s 2p is the electron configuration for carbon. The number of neutrons in a carbon atom's nucleus determines which isotope it is. Carbon has many different isotopes, some more important than others. The isotopes include: carbon-9, carbon-10, carbon-11, carbon-12, carbon-13, carbon-14, carbon-15, carbon-16, and carbon-17. carbon, carbon-14, compounds, six, important, compound, nucleus, neutrons, life, element, carbon-13, steel, protons, forms, carbon-12, series, scientists, organisms, number, molecules, make, fuel, electrons, contains, called, atom, amount, shell, plants, monoxide, means, mass, made, living, isotopes, energy, dioxide, diamond, dating, atomic, animals, about, waste, very, using, technique, table, sugar, small, since
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