6 ionic bonds are strong attractive forces between

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6. Ionic bonds are strong attractive forces between closely-spaced ions of opposite electrical charges. Covalent bonding the more stable outer electron configurations are achieved by sharing of valence electrons among two or neighboring atoms. 7. One or more valence electrons are simultaneously gained and lost by atoms participating in a chemical reaction. 8. Isotopes are atoms of the same element that are different in mass number. 9. Crystal form refers to the geometrically regular, external growth shape that mineral grains can exhibit. 10. Mineral color is highly sensitive to relatively small contents of impurity atoms and to bulk chemical compostitions in members of a solid solution series. 11. A hardness comparison with quartz would establish that the grain was above 7 in Mohs scale. So are many other minerals. 12. Any mineral listed in Mohs scale, corundum for example, will scratch softer minerals and will not scratch harder minerals. 13. The specific gravity of water is one by definition. Equal volumes of water and gold would have their weights in ratio 1:20. 14. Silicon is the name for the element with atomic number 14; the chmical symbol is Si. Silicate refers to any chemical compound that contains the elements silicon and oxygen. 15. Ferromagnesian is a word derived from the chemical elements magnesium and iron.
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  • Spring '13
  • NguyenVanVuong
  • Atom, Atomic mass unit

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