Unit 4: Chemical Bonding Test Review
What charge will K have when it loses or gains those electrons?
+1
What charge will N have when it loses or gains those electrons?
-3
Write the electron configuration for N.
1s2 2s2 2p3
Write the new electron configuration for N (after it loses or gains those electrons)
1s2 2s2 2p6
Write the new electron configuration for K (after it loses or gains those electrons)
1s2 2s2 2p6 3s2 3p6
Write the electron configuration for K
1s2 2s2 2p6 3s2 3p6 4s1
What noble gas is K now isoelectronic with?
Argon
A double covalent bond consists of _________ shared electrons.
Four
_____________ is the only noble gas with 2 valence electrons.
Helium
________________ is the only element in group 1 to bond covalently.
Hydrogen
If K and N bonded together, what would the formula be for the compound they would form?
K3N
Write the electron dot structure for K
K•
What noble gas is N now isoelectronic with?
Neon
The ________________ says that most atoms want 8 electrons in their outermost shell.
Octet Rule
Sodium wants to lose ______electron to become isoelectronic with Neon.
One
When Magnesium gets the same electron configuration as Ne it has a _____________charge
Positive 2
The difference between the trigonal planar and pyramid shapes is that the ___________ shape has an unshared pair of electrons on the central atom.
Pyramid
Molecules with a trigonal bipyramid shape have a total of _________ atoms in the molecule.
Six
The electrons in an atom's outermost shell are called its _______________ electrons.
Valence
The VSEPR theory stands for the ______________ theory.
Valence Shell Electron Pair Repulsion
I^-1 has the same electron configuration as the noble gas ___________.
Xeon
The two types of bonding are ___________ and _____________.
covalent, ionic
Ionic compounds are made up of _________, which are very large structures consisting of alternating + and - ions.
crystals
Atoms in group 15 will _________ three electrons to get a -3 charge.
gain
How many electrons will N lose or gain to attain a noble gas configuration?
gain 3
Ar and Cl^-1 have the same electron configuration, so they are ___________ with each other.
isoelectronic
How many electrons will K lose or gain to attain a noble gas configuration?
lose one
In ionic bonding, the two ways atoms can get the same configuration as a noble gas is by _______________ or ______________
losing, gaining
Metals are ____________, which means they can be hammered into different shapes
malleable
In a ___________ covalent bond, electrons are shared unequally.
polar
When atoms lose electrons they get a ____________ charge.
positive
In covalent bonding, atoms __________ electrons.
share
A ______________ covalent bond consists of 2 shared electrons.
single
Ionic compounds will not conduct an electric current in the _________ state.
solid
Molecules with 5 atoms, like CH4, will have a _____________ shape.
tetrahedral
When nitrogen bonds covalently it will make a total of _______ bonds.
three
