Chemistry - Chapter 7: Ionic Compounds and Metals

Chemical Bonds

The attraction between a positive ion and a negative ion.

______ electrons form the bonds.

valence

Chemical bonds react to get the electron configuration of a ______

noble gas

During the formation of positive ions, what happens to the electrons?

Loss of electrons

When positive ions have a loss of electrons what becomes positive?

cation

During the formation of negative ions, what happens to the electrons?

gain of electrons

When negative ions have a gain of electrons what becomes negatively charged?

anion

How do you name an anion?

attach suffix “ide”

ex) chloride

Nonmetals ______ # of electrons to get 8 valence electrons.

gain

In the formation of an Ionic bond, Sodium _____ 1 electron to chlorine & becomes _____.

loses - positive

Chlorine _____ electrons and becomes _______.

gains - negative

Sodium chloride forms because of the attraction of _____________.

oppositely charged ions

Ionic bonds is the force holding ________ charged particles together.

opposite

What does an Ionic bond with metal + oxygen form?

oxide

What are all other ionic compounds called?

salts

What does Binary ionic compounds include?

1. 2 elements

2. 1st a metal, 2nd a nonmental

In Crystal Lattice, what do positive and negative ion pack into _________.

repeating pattern

What does strength of bond determine?

1. melting point

2. boiling point

3. hardness

What does Ionic Compounds contain?

high melting and boiling points.

Electrolyte ionic compound dissolved in water allows charges to _______. They can now ________.

flow (like electricity)

conduct electricity

Endothermic

energy absored

Exothermic

energy released

An ionic bond formation: usually _________.

exothermic

______________ determines what will break the bond.

Lattice energy

Formula Unit

most simple ratio of ions in an ionic compound

Where does A groups get its charge?

get charge from group number (1+,2+,3+, skip, 3-, 2-, 1-)

What can B groups have?

can have more than 1 charge

Name of compound will have a ________________ to show charge.

roman numeral

Ammonium is only ________.

positive.

Oxyanion is a polyatomic ion with ______ in it.

oxygen

Oxyanion with more oxygen ends in “____.”

“ate”

ex) SO₄ = Sulfate

Oxyanion with less oxygen ends in “____.”

“ite”

ex) SO₃ = Sulfite

When naming ionic compounds, if transition: ___________

name element followed by a roman numeral = charge

When naming ionic compounds, ______ the subscripts to get charge in formula.

Metal atoms close together -- they overlap in Metallic Bonds, which forms an ____________________.

electorn sea model

Metallic Bonds electrons are called ______ electrons.

delocalized

Metallic bonds are held together by the attraction of positive _____ to the delocalized _______.

nuclei - electrons