Free Printable PS Unit 5 A

1.

Which is an electron?

a)

A

b)

B

c)

C

2.

How many electrons go in the first shell (ring) ?

a)

6

b)

8

c)

4

d)

2

3.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

4.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

5.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

6.

This could be the dot diagram of

a)

Ne

b)

Si

c)

Al

d)

Be

7.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

8.

Name this element.

a)

Neon

b)

Magnesium

c)

Sodium

d)

Manganese

9.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

10.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

11.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

12.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

13.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

14.

How many valence electrons does Nitrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

15.

How many valence electrons does Helium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

16.

The Alkali Metals are group _____ on the periodic table.

a)

2

b)

6

c)

3

d)

1

17.

Sodium (Na) is found in period

a)

3

b)

2

c)

4

d)

1

18.

Which of the following elements has the best physical properties to be a good conductor of energy?

a)

Carbon (C)

b)

Chlorine (Cl)

c)

Iron (Fe)

d)

Neon (Ne)

19.

Which is an alkali metal?

a)

Magnesium

b)

Iron

c)

Sodium

d)

Europium

20.

Using the element picture, what is the atomic number?

a)

1

b)

H

c)

Hydrogen

d)

1.00794

21.

The horizontal (left to right) rows on the periodic table are known as

a)

periods.

b)

atoms.

c)

groups or families.

d)

valence electrons.

22.

Helium, Neon, Argon, Krypton and Xenon are all in the last group on the periodic table. What is the special name of this group?

a)

King Gases

b)

Queen Gases

c)

Jokers Gases

d)

Noble Gases

23.

How many valence electrons does this element have?

a)

20

b)

2

c)

4

d)

1

24.

What element is in period 3 group 18, 8A?

a)

Aluminum

b)

Potassium

c)

Argon

d)

Neon

25.

Elements in a ..................have similar chemical properties.

a)

period

b)

group

c)

row

26.

Which is an alkali metal?

a)

Magnesium

b)

Iron

c)

Sodium

d)

Europium

27.

The atoms along the staircase are called

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

28.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

29.

Fluorine has a mass number of 19. It has 10 neutrons. How many protons does it have?

a)

10

b)

9

c)

8

d)

7

30.

Which is a halogen?

a)

Helium

b)

Chlorine

c)

Oxygen

d)

Neptune

31.

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

a)

luster

b)

metals

c)

nonmetals

d)

metalloids

32.

Are these molecules also compounds?

a)

YES

b)

NO

33.

What is the atomic number of this element?

a)

56

b)

26

c)

30

d)

82

34.

Groups 3-12 on the periodic table are called:

a)

Nonmetals

b)

Transition metals

c)

Metalloids

d)

Post transition

35.

The colored part of the periodic table is called:

a)

Metals

b)

Nonmetals

c)

Transition metals

d)

Metalloids

36.

Second group of the periodic table is called:

a)

Alkali metals

b)

Alkaline earth metals

c)

Transition metals

d)

Metalloids

37.

Group 18 on the periodic table is called:

a)

Metals

b)

Metalloids

c)

Halogens

d)

Noble gases

38.

Most elements are_________________

a)

Nonmetals

b)

Metals

c)

Metalloids

d)

Noble gases

39.

How many protons are in an atom of Nitrogen?

a)

14

b)

7

c)

10

d)

2

40.

Which is the best nuclear symbol for a potassium atom with 21 neutrons?

a)

b)

c)

d)

41.

How many neutrons are in the isotope pictured above?

a)

29

b)

34

c)

63

d)

92

42.

How man atoms of carbon are there?

a)

1

b)

2

c)

3

d)

4

43.

How many atoms of Iron are in this compound?

a)

1

b)

2

c)

3

d)

4

44.

How many atoms of hydrogen are in

C₆H₁₂O₆

a)

6

b)

12

c)

18

d)

2

45.

A substance made up of atoms of two or more different elements joined by chemical bonds

a)

Molecule

b)

compound

c)

polar covalent bond

d)

nonpolar covalent bond

46.

How many different elements are present in H₂COCH₂

a)

5

b)

4

c)

3

d)

2

47.

Calculate the number of Oxygen atoms in Al(OH)₃

a)

1

b)

2

c)

3

d)

4

48.

How many total POTASSIUM atoms are in this formula?

a)

8

b)

2

c)

4

d)

12

49.

How many elements are in this chemical formula? $NaHCO_3$

a)

1

b)

2

c)

3

d)

4

50.

Coefficients in chemical formulas...

a)

Multiply just the first atom

b)

Add to the subscripts at the end of the molecule

c)

Multiply elements without subscripts

d)

Multiply EVERYTHING!

51.

C₃H₅(NO₃)₃

a)

C = 3, H = 5, N = 3, O = 9

b)

C = 3, H = 5, N = 1, O = 9

c)

C = 9, H = 15, N = 3, O = 9

d)

C = 9, H = 15, N = 1, O = 3

52.

How many elements are in this chemical formula?

NaOH

a)

1

b)

2

c)

3

d)

4

53.

How many atoms are in the formula?

NaOH

a)

4

b)

3

c)

2

d)

1

54.

How many elements are in this formula?

HNO₃

a)

1

b)

2

c)

3

d)

4

55.

How many elements are in this formula?

Li₂O

a)

1

b)

2

c)

3

d)

4

56.

How many elements are there in this formula?

H₂COCH₂

a)

4

b)

3

c)

2

d)

1

57.

How many atoms are there in this formula?

H₂COCH₂

a)

5

b)

4

c)

6

d)

7

58.

How many atoms of oxygen(O) are in

3Fe₂O₃

a)

6

b)

9

c)

1

d)

3

59.

What is the total number of atoms in this formula? $H_2O_2$

a)

2

b)

4

c)

3

60.

Which of the following is a molecule of a compound?

a)

$H_2$

b)

$Cl_2$

c)

$H_2O$

d)

$F_2$

61.

How many elements are in this chemical formula? $NaHCO_3$

a)

1

b)

2

c)

3

d)

4

62.

How many TOTAL atoms are in this formiula?

HNO₃

(a)

63.

How many Magnesium atoms are in this formiula?

MgCl₂

(a)

64.

How many Carbon atoms are in this formiula?

K₂CO₃

(a)

65.

How many Phosphorus atoms are in this formiula?

Sr₃(PO₄)₂

(a)

66.

How many Aluminum atoms are in this formiula?

Al₂(CO₃)₃

(a)

67.

How many Carbon atoms are in this formiula?

Al₂(CO₃)₃

(a)

68.

How many Oxygen atoms are in this formiula?

Al₂(CO₃)₃

(a)

69.

How many different elements are in this formula?

a)

5

b)

4

c)

20

d)

10

70.

How many CARBON are in this formula?

a)

5

b)

2

c)

10

d)

20

PS Unit 5 A

Total questions: 70

Worksheet time: 44mins

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