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a 19 Metallic bonding exists in metals through the attraction between the freely-moving valence electrons and the positively charged metal atom. The valence electrons of these metal atoms are usually called ? ocean of protons b. sea of electrons c. outermost electrons d free ions 20. Metals are good conductor of heat and electricity. Which of the following BEST describes these properties? The electrons within the metals are free to move b The free moving electrons enable the metal atoms to slide over. c. The free valence electrons are able to reflect the light. d. The protons of a metal atom can easily attract the sea of electrons. 21. Carbon/Organic compounds are a. compounds that contain carbon and oxygen only. b. compounds that are produced by living things. composed mainly of carbon and hydrogen. d. compounds that contain carbon atoms only.
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