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Test Review
A
positive ion is known as a __________
 CATION
A
bond between two nonmetals (or two
anions) is known as a _____________
 COVALENT
BOND

The transfer of valence electrons is called a(n)
_______________

IONIC BOND

What type of bond is good a good conductor of electricity?

IONIC

How do you determine the number of neutrons in the
nucleus of an atom?

Atomic mass - #of protons = #of neutrons
OR
#of neutrons + #of protons = Atomic mass

What does the atomic number stand for?

The number of protons and electrons in an atom of
the element

Why do atoms bond?

To obtain a full outer valence electron shell (OCTET
RULE)


A(n) _______ is an atom with a CHARGE
ION

Lithium-7
 write this in isotope notation
How many neutrons does lithium-7 have?
 7-3 = 5neutrons

Is lithium-7 an isotope? Why or why not?
 No because this is how it appears on the periodic
table. 5 neutrons.


When naming binary ionic compounds, we first write
the name of the ___________ and then the anion
(nonmetal).

CATION (metal)

Balance :

2CoBr3 + 3CaSO4  3CaBr2 + 1Co2(SO4)3

Write the name for BaBr2

Barium bromide
CoBr3 + CaSO4  CaBr2 + Co2(SO4)3
 Write
the formula for the chemical
compound: iron (II) arsenide
 Fe3As2
 Write
the name for N2O5
 Dinitrogen pentaoxide
 Write
the formula for tetraphosphorus
pentasulfide
 P4S5
 Who
created the “plum pudding” model of the
atom?
 Thomson
 What
did the gold foil experiment conducted by
Rutherford help him discover?
 The nucleus of an atom
 ________
discovered the orbit of electrons
around the nucleus of an atom
 Bohr

Name all 10 prefixes used for naming covalent bonds

mono
di
tri
tetra
penta
hexa
hepta
octa
nona
deca

The sharing of valance electrons is called a _________

COVALENT BOND

An ion with a negative charge is called a(n) _________

ANION

Draw the lewis dot structures of sodium and
chlorine, then show the transfer of valence
electrons. What type of bond is this?

Ionic

What are the final charges of these ions?

Na +1 Cl -1