1) ________ bonds are formed when electrons are shared between two atoms in order to gain a stable outer shell. a) Ionic b) Covalent c) Metaillic d) Group 2) Covalent bonds- a) Only occur between metals b) Only occur between nonmetals c) Occur between metals and nonmetals 3) Covalent bonds are ____________ than Ionic bonds a) stronger b) the same as c) weaker 4) Covalent bonds have ______________ melting points that ionic bonds a) higher b) the same c) lower 5) Covalent bonds conduct electricity a) True b) False 6) _________________ electrons must be paired up. a) unpaired b) impaired c) repaired 7) Chemiscal formula is based on the _____________ of atoms of each element required a) size b) number c) shape 8) Each atom contributes ______ electron to each bond a) one b) two c) as many as needed 9) Covalent bonds can be solids, liquids, or gases. a) true b) false c) unable to determine 10) Which of the following is NOT a covalent bond? a) b) c) d)

Covalent Bonds Notes Review

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?