NAME:
SIN:
1. In the periodic table, what is a family?
2. In the periodic table, what is a period?
3. What is the Periodic Law?
4. List three characteristics of metals. Where are metals found?
5. List three characteristics of nonmetals. Where are nonmetals found?
6. What are metalloids? Where are metalloids found?
7. Nitrogen-14 and nitrogen-15 are isotopes of the element nitrogen. Describe how these isotopes would
differ from each other.
8. Explain the difference between Ba and Ba+2.
 Buckingham, Browne, & Nichols Middle School Science Department
9. Give the number of protons, neutrons, and electrons for the following atoms:
81
78
Se -2
Br
p+
n0
e-
108
Ag+1
p+
n0
e-
uranium-238
p+
n0
e-
p+
n0
e-
10. Fill in the following chart, for the subatomic particles pictured in the diagram of an atom:
name
abbreviation
location
charge
mass
A
C
A
B
B
C
C
11. Who are the Greek philosophers who started thinking about atoms?
12. Who is responsible for discovering the negatively charged particle now called the electron?
13. Who is responsible for discovering the positively charged particle now called the proton?
14. Who is responsible for discovering neutrons?
15. Who is responsible for discovering the nucleus?
16. Who is responsible for arranging electrons in orbits around the nucleus?
17. Who is responsible for developing the first theory that includes “all atoms of the same element are identical
and all atoms of different elements are different”?
18. Who is responsible for developing our knowledge about radiation?
19. Who is responsible for “inventing” the Periodic Table?
 Buckingham, Browne, & Nichols Middle School Science Department
20. Explain how the elements within each of the sets listed below are related to each other in terms of the
following:
set 1:
H, Li, Na, K, Rb, Cs
set 2:
B, Al, Ga, In, Tl
a) number of energy levels
set 1:
set 2:
b) number of outer-energy level electrons
set 1:
set 2:
c) reaction tendency (number of electrons most likely to be lost or gained)
set 1:
set 2:
d) oxidation number
set 1:
set 2:
 Buckingham, Browne, & Nichols Middle School Science Department
21. Explain how the elements within each of the sets listed below are related to each other in terms of the
following:
set 1:
Li, Be, B, C, N, O, F, Ne
set 2:
Na, Mg, Al, Si, P, S, Cl, Ar
e) number of energy levels
set 1:
set 2:
f)
number of outer-energy level electrons
set 1:
set 2:
g) reaction tendency (number of electrons most likely to be lost or gained)
set 1:
set 2:
h) oxidation number
set 1:
set 2:
 Buckingham, Browne, & Nichols Middle School Science Department
22. What numbers indicate the number of protons in atoms?
23. Where are these numbers located in the periodic table?
24. What indicates the number of electrons in a neutral atom?
25. Are elements with similar outer electron configurations located in the same row or in the same column?
26. Are fluorine, carbon, and radon metals, nonmetals, or metalloids? Where do such elements lie on the
periodic table?
27. Are sodium, calcium, and chromium metals, nonmetals, or metalloids? Where do such elements lie on
the periodic table?
28. Are boron, silicon, and tellurium metals, nonmetals, or metalloids? Where do such elements lie on the
periodic table?
29. What is the group number of helium, neon, and xenon?
30. What are the chemical symbol, atomic number, and atomic mass of lithium?
31. Which of the following elements have similar electron configurations: oxygen, fluorine, phosphorous,
sulfur? How can you tell?
32. Beryllium, boron, and oxygen are located in what row or column of the periodic table?
33. Which of the following elements have very similar chemical properties: fluorine, chlorine, nitrogen,
oxygen, sodium? How can you tell?
34. What are the atomic numbers of the elements in the lanthanide series?
35. How many rows are there in the periodic table?
36. How many columns are there in the periodic table?
37. Where on the table are the elements called halogens located? The alkali metals? The noble gases?
 Buckingham, Browne, & Nichols Middle School Science Department
38. What are the two rows of elements below the main body of the table called?
39. Metallic properties tend to increase in which direction on the periodic table?
40. On which side of the periodic table are nonmetals located?
41. Which columns contain the transition elements?
42. Which column contains elements with completely filled outer orbitals?
43. In what group are fluorine, chlorine, and iodine located? What is the name of this family of elements?
44. In what group are the alkaline earth elements located? Name two of these elements.
45. Of what are lanthanum (La) and europium (Eu) examples?
46. What are the most unreactive and most stable atoms in the periodic table called? In what group are
they located?
47. Do the transition elements display metallic, semi-metallic, or nonmetallic properties? What are the
group numbers of these elements?
48. Is oxygen an example of a metal, nonmetal, or metalloid? In what group is oxygen located? What is the
name of its chemical family?
49. What is the family name of the elements in Group 1 (IA)? Name two of these elements.
50. How similar might you expect the chemical properties of gallium (Ga) and indium (In) to be? Explain
your answer.
 Buckingham, Browne, & Nichols Middle School Science Department