Name______________________________
class_________
Directions: Answer the questions with the proper information using your notes, book, and the
periodic table.
1. Define a family. _______________________________________________________
2. What is a period? ________________________________________________________
3. What is the symbol for the following elements.
a. Magnesium _____________
b. Potassium ______________
c. Iron _______________
d. Copper ____________
4. What are the names of the following elements.
a. C __________________
b. Cl _________________
c. Au _________________
d. Sr _________________
5. What period are the following elements in?
a. He _______________
b. Ge _________________
c. Rb _______________
d. I __________________
6. What group are the following elements?
a. Sulfur _______________
b. Ca _________________
c. Iodine _______________
d. Fe _________________
7. Give me an atom with the following characteristics.
a. Halogen _________________ b. Chalogen ________________
c. Alkali metal ______________ d. Boron ________________
e. Lanthanide series __________ f. Alkaline Earth metal ________________
g. Transition metal ___________ h. Nobel gas ________________
1
Name______________________________
class_________
Directions: Use your Periodic table to complete the worksheet.
1. What is the atomic symbol for silver?
2. What is the atomic mass of mercury?
3. Ni is the symbol for what element?
4. The element that has the atomic number 17 is?
5. List the symbols for two transition metals.
6. Cu, Ag, and Au are all in what group #
7. Name two noble gases
8. Give the symbol for two halogens.
9. What is the symbol for element with atomic number 74?
10. What is the atomic mass of copper?
11. What is the last element in period 4?
For questions 12 - 15, label the following Key box as it should appear on your periodic table
12. ____________________
13. ____________________
14. ____________________
15. ____________________
6
C
Carbon
12.01
2
Name______________________________
Element
1
Oxygen
2
Helium
3
Carbon
4
Aluminum
5
Calcium
6
Sodium
7
Potassium
8
Nitrogen
9
Silicon
Atomic
# of
# of
Symbol Number protons electrons
O
8
8
8
class_________
Atomic
Mass
Period
15.999
2
Group
10 Iron
11 Hydrogen
3
Name______________________________
class_________
Directions: Use a Periodic table to find the information asked for below:
1. What is the atomic number of:
Calcium____
Iron _____
Gold_____
Uranium_____
2. What is the Atomic mass of:
Calcium___
Iron_____
Uranium_____
Copper_____
3. How many protons do the following have?
Calcium____
Gold_______
Copper______
Iron______
4. How many electrons do the following have?
Gold____
Iron_____
Copper_____
Uranium_____
5. Does mercury have more protons and electrons than tin?
6. Is mercury a heavier element than tin?
7. Does potassium have more electrons than neon?
8. Does hydrogen have more electrons than Uranium?
9. Which has more protons, sulfur or iodine?
10. Write the symbols or the names for each of these elements:
Chlorine __________________
Zn _______________________
Copper ___________________
Helium _____________
Potassium _________________
Iron ________________
Silver ____________________
P _______________________
Na _____________________
Ne _______________________
Sn _____________________
Mercury ______________
4
Name______________________________
class_________
Use the periodic table and your knowledge of periodic trends to answer the following questions.
1. Which atom in each pair has the larger atomic radius?
a) Li or K
b) Ca or Ni
c) Ga or B
d) O or C
f) Be or Ba
g) Si or S
h) Fe or Au
e) Cl or Br
2. What is the periodic trend for atomic size from top to bottom in a group? from left to right in a
period?
3. Why do atoms get smaller as you move left to right in a period?
4. Which element in each pair has a larger ionization energy?
a) Na or O
b) Be or Ba
c) Ar or F
d) Cu or Ra
f) K or V
g) Ca or Fr
h) W or Se
e) I or Ne
5. Explain the relationship between the relative size of an ion to its neutral atom and the
charge on the ions.
6. What is ionization energy? What is first ionization energy?
7. What is the periodic trend for first ionization energy?
9. Arrange the following groups of elements in order of increasing ionization energy.
a) Be, Mg, Sr
b) Bi, Cs, Ba
c) Na, Al, S
10. Which element in each pair has a higher electronegativity value?
a) Cl, F
b) C, N
c) Mg, Ne d) As, Ca
5
Name______________________________
class_________
11. What is the periodic trend for electronegativity?
For the following electron configurations choose possible elements they may represent
2
2
6
2
6
2
10
4
18) 1s 2s 2p 3s 3p 4s 3d 4p
2
2
6
2
6
2
10
5
19) 1s 2s 2p 3s 3p 4s 3d 4p
2
2
6
2
6
2
10
6
20) 1s 2s 2p 3s 3p 4s 3d 4p
2
2
6
2
6
2
10
6
2
10
6
2
14
10
6
1
21) 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s
2
2
6
2
6
2
10
6
2
10
6
2
14
10
6
2
14
8
22) 1s 2s 2p 3s 3p 4s 3d 4p 5s 4 d 5p 6s 4f 5d 6p 7s 5f 6d
2
2
6
2
6
2
10
6
2
10
6
2
10
23) 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f
2
2
6
2
6
2
10
6
2
10
6
2
14
10
4
24) 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p
2
2
6
2
6
2
5
25) 1s 2s 2p 3s 3p 4s 3d
2
2
6
2
6
2
10
6
2
10
2
26) 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p
2
10
3
27) [Kr] 5s 4d 5p
2
10
6
28) [Kr] 5s 4d 5p
1
29) [Ar] 4s
2
10
30) [Xe] 6s 4f
2
14
7
31) [Xe] 6s 4f 5d
32) [Ne] 3s2 3p1
In the space below, write the full (unabbreviated) electron configurations of the following elements:
1)
sodium ________________________________________________
2)
iron
________________________________________________
3)
bromine
________________________________________________
4)
barium
________________________________________________
5)
neptunium
________________________________________________
In the space below, write the Noble Gas (abbreviated) electron configurations of the following
elements:
6)
cobalt
________________________________________________
7)
silver
________________________________________________
8)
tellurium
________________________________________________
9)
radium ________________________________________________
6
Name______________________________
class_________
Determine what elements are denoted by the following electron configurations:
11)
1s22s22p63s23p4 ____________________
12)
1s22s22p63s23p64s23d104p65s1 ____________________
13)
[Kr] 5s24d105p3 ____________________
14)
[Xe] 6s24f145d6 ____________________
15)
[Rn] 7s25f11 ____________________
Determine which of the following electron configurations are not valid: State which rule has been violated.
16)
1s22s22p63s23p64s24d104p5 ____________________
17)
1s22s22p63s33d5 ____________________
18)
[Ra] 7s25f8 ____________________
19)
[Kr] 5s24d105p5 ____________________
Write the full electron configuration, short-hand electron configuration, and fill in the orbital diagrams, for
the following elements.
1. Nitrogen ______________________________________________________________
1s
2.
1s
2s
2p
3s
Chlorine________________________________________________________________
2s
2p
3s
3p
3. Sodium _________________________________________________________________
1s
2s
2p
3s
3p
4. Neon ___________________________________________________________________
1s
2s
2p
3s
3p
7
Name______________________________
class_________
5. Nickel ______________________________________________________________
1s
2s
2p
3s
3p
4s
3d
6) Vanadium________________________________________________________________
1s
2s
2p
3s
3p
4s
3d
7) Copper__________________________________________________________________
1s
2s
2p
3s
3p
4s
3d
8
Name______________________________
1. Here are three isotopes of an element:
12C
class_________
13C
14C
a. The element is: __________________
b. The number 6 refers to the _________________________
c. The numbers 12, 13, and 14 refer to the ________________________
d. How many protons and neutrons are in the first isotope? _________________
e. How many protons and neutrons are in the second isotope? _________________
f. How many protons and neutrons are in the third isotope? _________________
2. Complete the following chart:
Isotope name
atomic #
mass #
# of
protons
# of
neutrons
# of electrons
Potassium-37
Oxygen-17
uranium-235
uranium-238
boron-10
boron-11
DIRECTIONS: For the following problems, show your work! Be thorough.
3. Naturally occurring europium (Eu) consists of two isotopes was a mass of 151 and 153.
Europium-151 has an abundance of 48.03% and Europium-153 has an abundance of 51.97%.
What is the atomic mass of europium?
4. Strontium consists of four isotopes with masses of 84 (abundance 0.50%), 86 (abundance of
9.9%), 87 (abundance of 7.0%), and 88 (abundance of 82.6%). Calculate the atomic mass of
strontium.
46
47
48
5. Titanium has five common isotopes: Ti (8.0%), Ti (7.8%), Ti (73.4%),
49Ti (5.5%), 50Ti (5.3%). What is the average atomic mass of titanium?
9