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DCC Bonding Test
dual credit chem
| term/answer | question/def |
|---|---|
| valence electrons | the electrons involved in the formation of a chemical bond are called |
| nonpolar covalent | if 2 covalently bonded atoms are identical, the bond is |
| electronegativity | when atoms share electrons, the electrical attraction of an atom for the shared electrons is called the atom's |
| polar | if the atoms that share electrons have an unequal attraction for the electrons, the bond is called |
| electrons | what are shared in a covalent bond? |
| noble gas | what group of elements satisfies the octet rule without forming compounds? |
| 8 electrons | in drawing a lewis structure, each nonmetal atom except hydrogen should be surrounded by |
| least electronegative atom | in drawing a lewis structure, the central atom is generally the |
| number of valence electrons in each atom | to draw a lewis structure, one must know the |
| resonance | bonding in molecules or ions that cannot be correctly represented by a single lewis strucutre is |
| double-headed arrow | what is placed between a molecule's resonance structures to indicate resonance? |
| have lower melting points | compared with ionic compounds, molecular compounds |
| weaker than the forces among formula units in ionic bonding | the forces of attraction between molecules in a molecular compound are |
| metallic bond | a chemical bond formed by the attraction between positive ions and surrounding mobile electrons is a(n) |
| electron sea | in metallic bonds, the mobile electrons surrounding the positive ions are called a(n) |
| malleability | if a material can be shaped or extended by physical pressure, such as hammering, which property does the material have? |
| metallic bonds | malleability and ductility are characteristic of substances with |
| shatter | shifting the layers of an ionic crystal causes the crystal to |
| VSEPR theory | the concept that electrostatic repulsion between electron pairs surrounding an atom causes these pairs to be separated as far as possible is the foundation of |