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What is the electrical charge of zinc

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Zinc is a bluish-grey metal covered by a protective transparent layer of basic carbonate in air with an electrical charge of 2+. [ Source: http://www.chacha.com/question/what-is-the-electrical-charge-of-zinc ]
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What is the electrical charge of zinc
Zinc is a bluish-grey metal covered by a protective transparent layer of basic carbonate in air with an electrical charge of 2+.

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Q: 1)Which one of the following is not a trace element in the human body? A) fluorine B) nitrogen C) zinc D) manganese E) iodine 2) The four most common elements in living organisms are A) C, H, O, Fe. B) C, H, O, Na. C) C, H, O, N. D) C, N, O, Na. E) Fe, N, O, Ca. 3) Which one of the following is commonly added to table salt to prevent the formation of goiters? A) iodine B) iron C) calcium D) magnesium E) fluoride 4) A compound A) is a pure element. B) is less common than a pure element. C) contains two or more elements in a fixed ratio. D) is exemplified by sodium. E) is a solution. 5) The nucleus of an atom contains A) protons and neutrons. B) protons and electrons. C) only neutrons. D) only protons. E) only electrons. 6) The sodium atom contains 11 electrons, 11 protons, and 12 neutrons. What is the mass number of sodium? A) 0 B) 11 C) 22 D) 23 E) 34 7) The atomic number of an atom is A) the number of protons in the atom. B) the number of electrons in the atom. C) the number of neutrons in the atom. D) the number of protons, electrons, and neutrons in the atom. E) the net electrical charge of the atom. 8) When full, the innermost electron shell of an atom contains __________ electrons, and the outermost shell contains __________ electrons. A) 2 . . . 2 B) 2 . . . 8 C) 4 . . . 8 D) 8 . . . 2 E) 8 . . . 8 9) The farther an electron is from the nucleus, the A) greater its energy. B) lower the atomic number. C) more unstable the isotope. D) more likely it is to be radioactive. E) more inert the atom. 10) A(n) __________ forms when two atoms share electrons. A) ion B) element C) covalent bond D) ionic bond E) hydrogen bond 11) A water molecule (H-O-H) is held together by A) an ionic bond. B) a single covalent bond. C) a double covalent bond. D) a polar covalent bond. E) hydrogen bonds. 12) __________ are weak bonds that are not strong enough to hold atoms together to form molecules but are strong enough to form bridges between molecules. A) Ionic bonds B) Covalent bonds C) Polar covalent bonds D) Hydrogen bonds E) Anionic bonds 13) As ice melts, A) hydrogen bonds are broken. B) water molecules become less tightly packed. C) the water becomes less dense. D) covalent bonds form. E) All of the choices are true. 14) A solute is A) the dissolving agent of a solution. B) the liquid portion of a solution. C) usually water in living cells. D) the substance that is dissolved in solution. E) the dissolving agent of a solution which is usually oxygen in living cells. 15) Bases A) donate H+ ions to solutions. B) accept H+ ions from solutions. C) donate OH– ions to solutions. D) accept OH– ions from solutions. E) either accept H+ ions from solutions or donate OH– ions to solutions. 16) What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? A) 6 B) 8 C) +1 D) 12 E) 181) B2) C3) A4) C5) A6) D7) A8) B 9) A10) C11) B12) D13) E14) D15) E16) D
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Transition metals and coordination compounds simple questions!?
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