1 A) its outer energy shell B) the electron cloud C) the electron orbits D) its nucleus 2 A) polar bond B) ionic C) intermediate D) nonpolar 3 A) 12 B) 6 C) 8 D) 4 4 A) equal sharing of electrons B) ionic bonds C) covalent bonds D) unequal sharing of electrons 5 A) They are all nonmetals. B) They include the noble gases. C) Their outer energy levels are complete. D) They are all metalloids. 6 A) covalent bond B) electrical bond C) ionic bond D) salt 7 A) Mendeleev B) Mendelssohn C) Mendel D) Minsk 8 A) closer, more B) farther, more tightly bound C) farther, more D) farther, fewer 9 A) They are metals. B) They are metalloids. C) They have the same number of neutrons in their nuclei. D) They have three electrons in their outer energy levels. 10 A) nitrogen molecules B) magnesium chloride C) water molecules D) sodium fluoride 11 A) chemical formula B) electron dot diagram C) chemical symbol D) chemical equation 12 A) sodium and carbon B) potassium and nitrogen C) sodium and phosphorus D) potassium and iodine 13 A) isotope B) chemical compound C) ion D) chemical bond 14 A) middle B) highest C) negative D) lowest 15 A) an atom loses two pairs of electrons to another atom B) atoms share two pairs of electrons C) two atoms are joined by sharing electrons D) three pairs of electrons are shared 16 A) 17 B) 18 C) 1 D) 35 17 A) 10 B) 40 C) 20 D) 0 18 A) They are all nonmetals. B) They are all Group I elements. C) They are all metalloids. D) They all have two electrons in their outer energy levels. 19 A) solution B) compound C) molecule D) ion 20 A) negative metal ions, positive metalloid ions B) negative metal ions, positive nonmetal ion C) positive metal ions, negative nonmetal ions D) positive metal ion, noble gases
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