If the number of protons and electrons are NOT the same (unequal), you are left with an _______.
Ions are electrically charged because there is a change in the number of _________________.
(If you change the number of the PROTONS what happens???)
A positively (+) charged ion means _____________________________________________
A negatively (-) charged ion means ______________________________________________
ION CHARGE =
Given the information below, determine the charges on the following ions AND write the complete
chemical symbol for each.
p= 28
e= 26
n= 30
p= 17
e= 18
n= 18
p= 74
e= 72
n=108
p= 8
e= 10
n= 8
What is the complete chemical symbol for the ion with 12 protons and 10 electrons?
Write the complete chemical symbol for the ion with 95 protons and 89 electrons.
Write the complete chemical symbol for the ion with 33 protons and 36 electrons.
45
How many protons, electrons, and neutrons are present in the 21 Sc+3 ion?
Fill in the following table. Assume all are atoms unless there is enough information to determine
if there is a charge! (The ONLY WAY you would recognize an ION is if the symbol is shown
and there is a charge in the upper right hand corner OR if the # of electrons is DIFFERENT
from the # of protons!)
Chemical Symbol
# of protons
# of electrons
# of neutrons
53
74
Atom or Ion?
80Br
133
55
54
20
18
23Na+1
75As
20
27
32
56
81
Ag
60
N
Complete the following.
# p+
27
13 Al
10
# e-
#n0
7
atomic #
mass #
ion
atom or ion
+3
-------------------------------------------------------------------------------------79
34 Se
-2
Write the complete chemical symbol given the following information.
P = 79
E = 76
N= 118
P= 9
E= 10
N= 10