Name: 

A property that can only be observed when one substance changes into a different substance is called a chemical property. _________________________

On the periodic table, metals are found, in general, on the left side of the table. _________________________

Solid elements described as dull, brittle, and poor electrical and thermal conductors are most likely metals. _________________________

The group of elements that tend to be found as toxic gases or liquids in their pure form, including chlorine, bromine and iodine, are called the alkali metals. _________________________

A period’s number on the periodic table corresponds to the number of:

An example of a chemical property of a substance is its:

Horizontal rows on the periodic table are called:

All of the following are characteristics of metals EXCEPT:

Characteristics of non-metals include all of the following EXCEPT:

The location of metals on the periodic table is on the:

Most non-metals on the periodic table are located on the:

An atomic mass unit is the approximate mass of a single:

An example of a metalloid, elements with properties between metals and non-metals, is

Atomic weight is approximately the same as:

The diagram below represents information that can be found on the periodic table for the element helium.



The atomic weight of a helium atom is indicated by the arrow at:

The diagram below represents information that can be found on the periodic table for the element argon.



The mass number for an argon isotope is represented at:

The diagram below represents an atom containing 4 electrons in the third energy level. The small, dark circles represent electrons distributed around the nucleus of the atom. The element represented by the diagram below is:

The second energy level of a single oxygen atom contains six electrons. The total number of electrons found on an oxygen atom is:

The total number of electrons the first three energy levels of an atom can hold is:

Electrons are found in the third energy level for atoms of the element:

All of the following statements about electron levels are true EXCEPT:

The diagram below represents information that can be found on the periodic table for the element magnesium.



The atomic number for magnesium is indicated at:

According to the periodic table in Figure 7-1, which group are the chemical elements that belong to the noble gases?

According to the periodic table in Figure 7-1, the group known as the halogens include the element:

Using the periodic table in Figure 7-1, transition elements belong to groups:

Using the periodic table in Figure 7-1, all of the following elements belong to the main group elements EXCEPT:

According to the periodic table in Figure 7-1, transition metals include all of the following elements EXCEPT:

Alkali metals, highly reactive with oxygen, are found on the periodic table in Figure 7-1 in group:

The atomic weight of boron is 10.811. What is the mass number of the most abundant isotope of boron?

The group identified as inert gases because their atoms do not form chemical bonds with other atoms is also known as the ____________________ gases.

Horizontal rows on the periodic table are called ____________________.

On the periodic table, elements with similar properties are placed in vertical columns called ____________________.

Elements on the periodic table that have properties between metals and non-metals are called ____________________

Helium belongs to the vertical group on the periodic table known as the ____________________.

The most active metal is found in the group known as the ____________________ metals.

Two particles found in the nucleus of most atoms have masses equivalent to one atomic mass unit, or 1 amu. Name the particles.

Chemical and physical changes represent two ways in which a substance may be altered. Which change is more difficult to reverse?

Some elements occur naturally while others are made by scientists in the laboratory. Of which is there a greater number: man-made or naturally-occurring elements?

The periodic table was developed by scientists over a number of years after much investigation.What properties were used to organize the periodic table?

Use the periodic table below to answer the following questions:

1

18

1

1 H Hydrogen 1.0

2

13

14

15

16

17

2 He Helium 4.0

2

3 Li Lithium 6.9

4 Be Beryllium 9.0

5 B Boron 10.8

6 C Carbon 12.0

7 N Nitrogen 14.0

8 O Oxygen 16.0

9 F Fluorine 19.0

10 Ne Neon 20.2

3

11 Na Sodium 23.0

12 Mg Magnesium 24.3

3

4

5

6

7

8

9

10

11

12

13 Al Aluminum 27.0

14 Si Silicon 28.1

15 P Phosphorus 31.0

16 S Sulfur 32.1

17 Cl Chlorine 35.5

18 Ar Argon 39.9

4

19 K Potassium 39.1

20 Ca Calcium 40.1

21 Sc Scandium 45.0

22 Ti Titanium 47.9

23 V Vanadium 50.9

24 Cr Chromium 52.0

25 Mn Manganese 54.9

26 Fe Iron 55.8

27 Co Cobalt 58.9

28 Ni Nickel 58.7

29 Cu Copper 63.5

30 Zn Zinc 65.4

31 Ga Gallium 69.7

32 Ge Germanium 72.6

33 As Arsenic 74.9

34 Se Selenium 79.0

35 Br Bromine 79.9

36 Kr Krypton 83.8

5

37 Rb Rubidium 85.5

38 Sr Strontium 87.6

39 Y Yttrium 88.9

40 Zr Zirconium 91.2

41 Nb Niobium 92.9

42 Mo Molybdenum 95.9

43 Tc Technetium (97.9)

44 Ru Ruthenium 101.1

45 Rh Rhodium 102.9

46 Pd Palladium 106.4

47 Ag Silver 107.9

48 Cd Cadmium 112.4

49 In Indium 114.8

50 Sn Tin 118.7

51 Sb Antimony 121.8

52 Te Tellurium 127.6

53 I Iodine 126.9

54 Xe Xenon 131.3

6

55 Cs Cesium 132.9

56 Ba Barium 137.3

57 La Lanthanum 138.9

72 Hf Hafnium 178.5

73 Ta Tantalum 180.9

74 W Tungsten 183.8

75 Re Rhenium 186.2

76 Os Osmium 190.2

77 Ir Iridium 192.2

78 Pt Platinum 195.1

79 Au Gold 197.0

80 Hg Mercury 200.6

81 Tl Thallium 204.4

82 Pb Lead 207.2

83 Bi Bismuth 209.0

84 Po Polonium (209.0)

85 At Astatine (210.0)

86 Rn Radon (222.0)

7

87 Fr Francium (223.0)

88 Ra Radium (226.0)

89 Ac Actinium (227.0)

104 Rf Rutherfordium (261.1)

105 Db Dubnium (262.1)

106 Sg Seaborgium (263.1)

107 Bh Bohrium (262.1)

108 Hs Hassium (265)

109 Mt Meitnerium (266)

110 Uun Ununnilium (271)

111 Uuu Unununium (272)

112 Uub Ununbium (277)

114 Uuq Ununquadium (285)

116 Uuh Ununhexium (289)

118 Uuo Ununoctium (293)

58 Ce Cerium 140.1

59 Pr Praseodymium 140.9

60 Nd Neodymium 144.2

61 Pm Promethium (144.9)

62 Sm Samarium 150.4

63 Eu Europium 152.0

64 Gd Gadolinium 157.3

65 Tb Terbium 158.9

66 Dy Dysprosium 162.5

67 Ho Holmium 164.9

68 Er Erbium 167.3

69 Tm Thulium 168.9

70 Yb Ytterbium 173.0

71 Lu Lutetium 175.0

90 Th Thorium 232.0

91 Pa Protactinium 231.0

92 U Uranium 238.0

93 Np Neptunium (237.0)

94 Pu Plutonium 244.1

95 Am Americium (243.1)

96 Cm Curium (247.1)

97 Bk Berkelium (247.1)

98 Cf Californium (251.1)

99 Es Einsteinium (252.1)

100 Fm Fermium (257.1)

101 Md Mendelevium (258.1)

102 No Nobelium (259.1)

103 Lr Lawrencium (262.1)

a. In which group are the alkali metals located?	_____
b. In which group are the noble gases located?	_____
c. In which group are the halogens located?	_____
d. In which groups are the transition metals located?	_____
e. How many energy levels are in a calcium atom?	_____

An atomic mass unit is equal to 1.66 ´ 10^-24 grams. What is the mass, in grams, of an average fluorine atom?

Each element is represented on the periodic table by a box containing numbers and a letter or letters. Explain what is meant by each number and the letters for the element sodium, which is represented in the following diagram.

The atomic weight of carbon is 12.011. Explain how this number is established.