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Terms in this set (38)
When sharing of electrons occurs, the attachment between atoms that results is called a
When two or more atoms bond by means of electron sharing, the resulting particle is called a
If the electrons shared are centered equally between two atoms, the attachment is called a
non polar bond
If electrons are shared unequally, the attachment is called a
How many electrons are shared in a double bond?
T or F: Binary molecular compounds are generally composed of a metal and a nonmetal.
F. Two non metals
T or F: The second element in the formula of a binary compound is named using the suffix -ite.
F. The second element is named using the suffix -ide
T or F: The prefix tetra- indicates three atoms
F. tetra indicates 4 atoms
T or F: The prefix hexa- indicates six atoms
T or F: In naming the first element in a formula, the prefix mono- is not used.
Ionic molecular compounds are composed of ...
metal and non metal
T or F: A structural formula shows the arrangement of the atoms in a molecule.
T or F: In molecules, H is always a terminal atom
T or F: The number of bonding pairs in a molecule is equal to the number of electrons
The VSEPR model is used mainly to
determine molecular shape
The VSEPR model is based on the idea that
shared and unshared electron pairs repel each other as much as possible.
The shape of a molecule whose central atom has four pairs of bonding electrons is
The shape of a molecule that has two covalent single bonds and no lone pairs on the central atom is
The shape of a molecule that has three single covalent bonds and one lone on the central atom is
indicates the ability of an atom to attract electrons from another element
Which element is the most electronegative
Which general trend do you note going down a group? across a period?
How are the electronegativity values used to determine the type of bond that exists between two atoms?
Find the difference and determine if its ionic, polar, or non polar.
T or F: Ionic compounds are usually soluble in polar substances
T. ex.) NaCl, CuSo4
Unequal sharing of electrons between two bonded atoms always indicates
a polar covalent bond
When electronegatives of two bonded atoms differ greatly, the bond is
What is the EN difference that usually is the dividing line between covalent and ionic
The symbol 8+ is placed next to which of the following
the less EN atom in a polar covalent bond
Nonpolar bonds are ones in which
electrons are shared equally
What factor other than EN determines whether a molecule as a whole is polar or not?
WHich of the following correctly describes water, H2O
polar overall, with polar covalent bonds
WHich of the following correctly describes the compound carbon tetrachloride, CCl4
non polar overall, with polar covalent bonds
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