Download Ions Practice Bonanza

Name: _________________________________
Period: _______
Date: _____________
Ions Practice Bonanza
Standard: Use the Periodic Table to identify atoms (including ions and isotopes) based on their atomic number,
atomic mass, and subatomic particles.
Objective: Define an ion and calculate its number of electrons.
1. Lithium
Charge
Number of
Electrons
2. Boron
Charge
0
0
+1
+1
+2
3
0
3. Oxygen
Charge
Number of
Electrons
Number of
Electrons
+3
4. Sodium
Charge
0
0
-1
+1
-2
-2
5. Carbon
Charge
6. Nitrogen
Charge
Number of
Electrons
0
0
+1
-3
-1
+2
Number of
Electrons
Number of
Electrons
Complete the following table using the strategies we learned today.
Atom
Charge
Number of
Cation, Anion or
Electrons
Neutral?
Magnesium
0
Magnesium
+2
Fluorine
10
Beryllium
3
Neon
-1
Potassium
+1
Sulfur
18
-1
Calcium
+2
+1
Arsenic
8
36
36
Calculate the number of protons neutrons and electrons given the isotope symbol.
BEWARE of the charge! Remember: when SUBTRACTING negative numbers it’s the same as
ADDING!
Isotope
Atomic
Atomic
# of
# of
# of
Cation, Anion
Symbol
Number
Mass
protons
neutrons
electrons
or Neutral?
16 −2
8𝑂
7
+2
4𝐵𝑒
24
+1
11𝑁𝑎
37 −1
17𝐶𝑙
50
18𝐴𝑟
66
+3
31𝐺𝑎
84
+1
37𝑅𝑏
Name: _________________________________
Period: _______
Date: _____________
Ions Homework
1. What is an ion? ___________________________________________________________
________________________________________________________________________
2. How is a sodium atom the same as a sodium ion? _______________________________
________________________________________________________________________
3. How is a sodium atom different from a sodium ion? _____________________________
________________________________________________________________________
4. When an ion is positive, it has _______________________ (gained/lost) electrons.
5. Another name for a positive ion is a ______________________________.
6. When an ion is negative it has _______________________ (gained/lost) electrons.
7. Another name for a negative ion is a ______________________________.
8. Determine the charges of the following atoms:
a. An atom that has lost 2 electrons _________________
b. An atom that has lost 6 electrons _________________
c. An atom that has gained 1 electron _________________
d. An atom that has gained 3 electrons _________________
e. An atom that has lost 5 electrons _________________
f. An atom that has gained 2 electrons _________________
g. An atom that has lost 1 electron _________________
h. An atom that has gained 4 electrons _________________
Answer questions 9-12 using the diagram below. Make sure to EXPLAIN YOUR
ANSWERS completely or you’ll only receive half credit on your homework.
9. Which of the above are ions? Explain your reasoning.
10. Which one(s) are cations? Explain your reasoning.
11. Which one(s) are anions? Explain your reasoning.
12. Are any of the above atoms neutral? How do you know?
Complete the following table using your periodic table!
Ion
Iodine
I-1
Mass
Number
127
Cl-1
35
17
1
1
Symbol
Atomic
Number
Hydrogen
Br-1
B+3
Oxygen
79
54
0
5
11
16
36
8
7
Al+3
27
Fe+2
56
Cu+1
Electrons
46
35
O-2
Neutrons
53
35
Nitrogen
Aluminum
Protons
7
10
10
26
29
24
34
63
29
27