Free Printable The Periodic Table Review HW

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The Periodic Table Review HW

Total questions: 87

Worksheet time: 29mins

Name

Class

Date

In Mendeleev’s periodic table, elements with similar properties were grouped __________.

in the same row

in the same column

in diagonal lines that run from top left to the bottom right

in pairs of two

For which element did Mendeleev correctly predict the properties even before it had been discovered?

gallium

hydrogen

bromine

aluminum

The first elements to be identified were mainly gases.

True

False

As the number of known elements grew, so did the need to organize them into groups based on their __________.

phase state

color

properties

Which of the following categories did French chemist Antoine Lavoisier use to classify elements?

gases

metals

liquids

Which type(s) of information did Dmitri Mendeleev know about each element?

name

number of protons

relative mass

Dmitri Mendeleev arranged the elements into rows in order of __________ so that elements with similar properties were in the same column.

increasing mass

atomic number

decreasing mass

A periodic table is an arrangement of elements in columns, based on a set of properties that repeat from row to row.

True

False

Mendeleev published the table blank for (a) elements.

10.

Which two elements have similar properties?

zinc (Zn)

chlorine (Cl)

bromine (Br)

11.

Mendeleev was the first scientist to arrange elements in a periodic table.

True

False

12.

Mendeleev used the properties of (a) located near the spaces in his table to predict properties for undiscovered elements.

13.

Which element(s) were discovered after Mendeleev published his periodic table and that support his predictions.

gallium

scandium

aluminum

14.

What determines the atomic mass of an element?

the natural distribution of isotopes and the atomic numbers of those isotopes

the natural distribution of isotopes and the masses of those isotopes

the mass of the isotope of the element that has the most neutrons

the average number of protons in the element’s nucleus

15.

In the modern periodic table, elements are arranged by increasing number of protons.

True

False

16.

Properties of elements repeat in a predictable way when atomic numbers (number of protons) are used to arrange elements into groups. This pattern of repeating properties is called the (a) .

17.

What is the name of the item being pointed at by the arrow?

(a)

18.

What is the name of the item being pointed at by the arrow?

(a)

19.

What is the name of the item being pointed at by the arrow?

(a)

20.

What is the name of the item being pointed at by the arrow?

(a)

21.

The average atomic mass of an element is a decimal because most elements exist as a mixture of two or more (a) .

22.

Which of the following statements is true about a carbon-12 atom.

it has 6 protons and 6 neutrons

scientists assigned a mass of 6 atomic mass units to the carbon-12 atom

it is used as a standard for comparing the masses of atoms

an atomic mass unit is defined as one twelfth the mass of a carbon-12 atom

23.

Most elements exist as a mixture of two or more isotopes.

True

False

24.

The mass of a chlorine-37 atom is greater than the mass of a chlorine-35 atom.

True

False

25.

How many protons does aluminum have?

(a)

26.

Wis the average atomic mass of potassium? *Use the abbreviation of the unit.

(a)

27.

What is the chemical symbol for helium?

(a)

28.

What does it mean that chlorine's average atomic mass is more than double its atomic number?

on average, chlorine has the same amount of protons than neutrons

on average, chlorine has less protons than neutrons

on average, chlorine has more protons than neutrons

29.

Which of the following is not a characteristic of metals?

ductile

good electrical conductor

typically solid at room temperature

brittle

30.

Within a period of the periodic table, how do the properties of the elements vary?

Metallic characteristics increase from left to right.

Metallic characteristics decrease from left to right.

Reactivity increases from left to right.

Reactivity decreases from left to right.

31.

Which of these are not one of the main classifications of elements?

metals

nonmetals

metalloids

noble gases

32.

All metals react with oxygen in the same way.

True

False

33.

Which of the following statements are true about nonmetals?

Nonmetals are poor conductors of heat and electric current.

Many nonmetals are gases at room temperature.

Some nonmetals are extremely reactive and others hardly react at all.

Nonmetals are solids that tend to be malleable.

34.

Across a period from left to right, the elements become less metallic and (a) nonmetallic in their properties.

35.

Which of these elements are in Period 3 and highly reactive?

sodium

chlorine

silicon

argon

36.

How many energy levels do elements in Period 3 have?

(a)

37.

How many electrons does chlorine need to gain in order to have a full valence?

(a)

38.

How many electrons does sodium need to lose in order to have a full valence?

(a)

39.

An electron that is in the highest occupied energy level of an atom is a(n) (a) electron.

40.

Elements within a group have the (a) number of valence electrons.

41.

The reactivity of alkali metals __________ from the top of Group 1A to the bottom.

decreases

increases

stays the same

42.

Which of the properties listed below apply to the element magnesium?

helps build strong teeth and bones

helps plants produce sugar

is used to make lightweight bicycle frames

is the main ingredient in limestone

43.

Which of the properties listed below apply to the element calcium?

helps build strong teeth and bones

helps plants produce sugar

is used to make lightweight bicycle frames

is the main ingredient in limestone

44.

Why do elements in a group have similar chemical properties?

they have the same number of valence electrons

they have the same ratio of protons to neutrons

their atomic masses are multiples of the least massive element of the group

they have the same number of total electrons

45.

Which Group 2A element would you expect to react most readily with water?

beryllium (Be)

calcium (Ca)

barium (Ba)

radium (Ra)

46.

How many valence electrons do elements in Group 1A have?

(a)

47.

How many valence electrons do elements in Group 2A have?

(a)

48.

How many energy levels do elements in Period 3 have?

(a)

49.

These are the metals in Group 3A.

boron

aluminum

gallium

indium

thallium

50.

Which of the following statements is true about aluminum?

it is the most abundant metal in Earth's crust

it is malleable

it is more reactive than sodium and magnesium

it is a good conductor of electric current

51.

The two metalloids in Group 4A are silicon and (a) .

52.

Except for water, most of the compounds in your body contain (a) .

53.

The two nonmetals in Group 5A are nitrogen and (a) .

54.

These elements from Group 5A may be contained in fertilizer.

nitrogen

phosphorus

potassium

55.

The three nonmetals in Group 6A are sulfur, selenium and (a) .

56.

This element is the most abundant element in Earth's crust.

(a)

57.

The four nonmetals in Group 7A are bromine, chlorine, iodine and (a) .

58.

Halogens have different physical properties, but similar (a) properties.

59.

Noble gases are colorless, odorless and extremely (a) .

60.

How many valence electrons does krypton have?

(a)

61.

How many valence electrons does tin have?

(a)

62.

How many energy levels does silicon have?

(a)

63.

How many energy levels does potassium have?

(a)

64.

a row in a periodic table of elements

(a)

65.

a column of elements in a periodic table

(a)

66.

the pattern of repeating properties displayed by elements in the periodic table

(a)

67.

one-twelfth the mass of a carbon-12 atom; equivalent to the weight of one atomic particle (proton or neutron)

(a)

68.

elements with properties that fall between those of metals and nonmetals; located on the "stairs" on the periodic table

(a)

69.

the elements in Group 17 of the periodic table

(a)

70.

a one-, two-, or three-letter abbreviation of the name of an element

(a)

71.

the number of protons in the nucleus of an atom

(a)

72.

an arrangement of elements in columns, based on a set of properties that repeat from row to row

(a)

73.

Russian chemist and inventor, best known for formulating the Periodic Law and creating a version of the periodic table of elements

(a)

74.

elements that are good conductors of heat and electric current; Groups 1 and 2 on the periodic table

(a)

75.

elements that form a bridge between elements on the left and right sides of the periodic table; Groups 3 - 12 on the periodic table

(a)

76.

elements that are poor conductors of heat and electric current; present in Groups 13 - 17 on the periodic table

(a)

77.

an electron that is in the highest (outermost) occupied energy level of an atom

(a)

78.

the elements in Group 1 of the periodic table, not including hydrogen

(a)

79.

the elements in Group 2 of the periodic table

(a)

80.

the elements in Group 18 of the periodic table

(a)

81.

atoms of a given element that have different numbers of neutrons and different mass numbers

(a)

82.

the weighted average of the masses of all naturally occurring isotopes of an element

(a)

83.

elements in Group 13 on the periodic table

(a)

84.

elements in Group 14 on the periodic table

(a)

85.

elements in Group 15 on the periodic table

(a)

86.

elements in Group 16 on the periodic table

(a)

87.

French chemist and leading figure in the 18th-century chemical revolution who developed an experimentally based theory of the chemical reactivity of oxygen and coauthored the modern system for naming chemical substances

(a)

100 %

The Periodic Table Review HW

Total questions: 87

Worksheet time: 29mins

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