CHM 111, Chap 9-10
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ACROSS
2. A polar molecule has a ___ ___ > 0.
7. ___ bonding is the attraction two
atoms have for the pair(s) of electrons
that they share by overlapping valence
orbitals.
9. This electronic shape has two different
angles between electron groups:
trigonal ___.
10. ___ structures show the connections
between atoms and all of the electrons
11. ___ energy is the energy difference
between gaseous ions and a crystalline
solid.
13. For an AX3 group of atoms the
molecular shape is trigonal ___.
14. Atoms bond to attain a "full" outer
shell of eight (or two) electrons.
15. The molecular shape for an AX5E
arrangement is ___ pyramidal.
16. The attraction an atom has for
electrons that it shares.
17. In the acronym "VSEPR" the R
stands for ___.
DOWN
1. The electronic structure of a central
atom with four groups of electrons is
___.
3. When the electrons in a bond are
shared unevenly the bond is ___
covalent.
4. ___ bonding is the attraction cations
have for the "sea" of electrons around
them.
5. ___ bonding is the attraction between
ions having opposite charges.
6. ___ structures have the atoms in the
same positions but the electrons have
moved.
8. A covalent bond that involves 6 shared
electrons is a ___ bond.
12. ___ law relates the strength of
attraction to the size of the opposite
charges and the distance between
them.
15. Electrons in a covalent bond are
sometimes called a ___ pair.