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Worksheets

Subatomic Structure

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

What is another name for "highest/last/outer shell electrons"?

a)

bonded electrons

b)

core electrons

c)

shell electrons

d)

valence electrons

2.

Which of the following is true about a nucleon?

a)

It is either a proton or a neutron.

b)

It is found in the electron cloud of an atom.

c)

It is either positive or negative.

d)

It has a different number of electrons than protons.

3.

The total of an atom's nucleons is it's what?

a)

atomic number

b)

atomic mass

c)

mass number

d)

valence number

4.

If the mass number of an atom of Sn (Tin) is 118, how many protons does it have?

a)

50

b)

118

c)

68

d)

4

5.

If the mass number of an atom of Sn (Tin) is 118, how many neutrons does it have?

a)

50

b)

68

c)

118

d)

4

6.

Which of the following is true?

a)

An ion is a form of the same element that has a different number of neutrons.

b)

An isotope is a form of the same element that has a different number of neutrons.

c)

An isotope is a form of the same element that has a different number of electrons.

d)

An ion is a form of the same element that has a different number of protons.

7.

Which of the following is true?

a)

An atom of an element can never change its number of protons.

b)

An atom of an element can never change its number of electrons.

c)

An element can never change its number of neutrons.

d)

None of the above

8.

Which of the following is true regarding VALENCE electrons?

a)

All elements have their main group number equal to their number of valence electrons.

b)

All elements have their group number equal to their number of valence electrons.

c)

All elements have their period number equal to their number of valence electrons.

d)

None of these

9.

Which of the following is true regarding an element's number of occupied electron shells/orbitals/levels?

a)

It is equal to the main group number

b)

It is equal to the period number

c)

It is equal to the number of protons

d)

It is a number between 1-4

10.

How many PAIRS of electrons would the electron dot diagram for ANY element in Main Group 5 have?

a)

1

b)

2

c)

3

d)

4

11.

How many LONE/UNPAIRED electrons would the electron dot diagram for ANY element in Main Group 3 have?

a)

1

b)

2

c)

3

d)

4

12.

How many VALENCE electrons do the Noble Gases have except for the element ________________.

a)

7, Neon

b)

8, Hydrogen

c)

7, Radon

d)

8, Helium

e)

none of these

13.

How many Valence electrons do all of the elements in the same group as Oxygen/O, have?

a)

1

b)

2

c)

4

d)

6

14.

What group has the least amount of valence electrons?

a)

Alkali Earth Metals

b)

Halogens

c)

Alkali Metals

d)

Transitional Metals

e)

Metalloids

15.

Which of the following is true regarding the electron arrangement for Osmium/Os (atomic number 76)?

a)

It uses 3 shells/orbitals/levels

b)

It has 7 valence electrons

c)

It uses 6 shells/levels

d)

It has 4 valence electrons.

16.

Which of the following is true regarding the electron arrangement for Strontium/Sr (atomic number 38)?

a)

It uses 4 levels and it has 2 in the last level

b)

It uses 6 levels and its electrons fill in with 2 in the first level, 8 in the second level, 8 in the third level, 18 in the fourth level, and 2 in the last/highest level.

c)

It uses 6 levels and its electrons fill in with 2 in the first level, 8 in the second level, 18 in the third level, 8 in the fourth level, and 2 in the last/highest level.

d)

It uses 5 levels and its electrons fill in with 2 in the first level, 8 in the second level, 18 in the third level, 8 in the fourth level, and 2 in the last/highest level.

17.

Which of the following is true regarding the Bohr model for Te/Tellurium (atomic number 52)?

a)

It would have 5 electrons in its last/highest level.

b)

It would have 52 electrons in the nucleus.

c)

It would have 18 electrons in its 2nd energy level.

d)

It would have electrons in 5 levels with 6 in the last/highest level.

18.

How many electrons does an ion of Phosphorus/P (atomic number 15) have with a charge of -3?

a)

3

b)

15

c)

12

d)

18

19.

How many electrons does an ion of Rubidium/Rb (atomic number 37) have with a charge of +1?

a)

1

b)

36

c)

37

d)

38

20.

Which element uses 4 levels for its electrons and has 7 valence electrons?

a)

Bromine/Br

b)

Zirconium/Zr

c)

Iodine/I

d)

Manganese/Mn

21.

Which element uses 3 levels for its electrons and has 5 valence electrons?

a)

As/Arsenic

b)

P/Phosphorus

c)

Y/Yttrium

d)

Bi/Bismuth

22.

Which of the following is true regarding the atomic/isotope notation for an atom of Bismuth/Bi (atomic number 83) with 126 neutrons?

a)

It would have 209 in the top left corner.

b)

It would have 83 in the bottom left corner.

c)

It would have 0 in the top right corner.

d)

all of the above

e)

none of these

23.

Which of the following is true regarding the atomic/isotope notation for an ion of Bismuth/Bi (atomic number 83) with 126 neutrons and a charge of +3?

a)

It would have 0 in the top right corner.

b)

It would have 83 in the top left corner.

c)

It would have 126 in the bottom left corner.

d)

It would have 0 in the top right corner.

e)

It would contain 80 electrons.

24.

Which of the following is true regarding an atom of Silver/Ag (atomic number 47) that has 108 in the top left, 47 in the bottom left and +2 in the top right corner of its atomic/isotope notation?

a)

It contains 47 neutrons.

b)

It is a neutral atom.

c)

It contains 45 electrons.

d)

It has a mass number of 61.

e)

It has an atomic number of 108.

25.

Which of the following is true regarding an atom of Astatine/At (atomic number 85) that has 210 in the top left, -1 in the top right corner of its atomic/isotope notation?

a)

It contains 84 electrons.

b)

It contains 85 protons.

c)

It has a mass number of 85.

d)

It contains 125 neutrons.

e)

b and d

26.

Which of the following is true?

a)

An isotope has a different number of neutrons.

b)

An ion has a different number of electrons.

c)

A neutral atom has the same number of protons and electrons.

d)

ALL OF THE ABOVE!!!!!!!!!!!!!!!!!!!!

27.

How does an atom become an ION?

a)

it loses neutrons

b)

it gains electrons

c)

it loses or gains electrons

d)

it loses or gains neutrons

28.

How do you get the number of neutrons for an atom?

a)

subtract atomic number from mass number

b)

subtract mass number from atomic number

c)

subtract the number of protons from the mass number

d)

subtract the number of electrons of a neutral atom from the mass number

e)

a, c, and d

29.

All of the Halogens have _______ valence electrons and make _______ bonds.

a)

7,1

b)

1, 7

c)

3, 1

d)

1, 3

30.

In the Lewis Dot diagram, how many electrons are paired for Tin/Sn?

a)

0

b)

1

c)

2

d)

3

e)

4

31.

In the Bohr Model for Germanium/Ge, with a mass number of 73, how many subatomic particles does it have in its nucleus?

a)

73

b)

32

c)

41

d)

4

32.

In the Bohr Model for Germanium/Ge, with a mass number of 73, how many positive subatomic particles does it have?

a)

73

b)

32

c)

43

d)

4

e)

0

33.

In the Bohr Model for Germanium/Ge, with a mass number of 73, how many energy levels does it have that contain at least one electron?

a)

73

b)

32

c)

41

d)

4

34.

In the Bohr Model for Germanium/Ge, with a mass number of 73, how many electrons does it have in its highest/last/outer energy level/shell?

a)

73

b)

32

c)

41

d)

4

35.

How many valence electrons does Polonium/Po have?

a)

84

b)

125

c)

-6

d)

6

e)

209

36.

What is the atomic number of an atom of Polonium/Po that has 125 neutrons?

a)

6

b)

125

c)

84

d)

209

37.

What is the mass number of an atom of Polonium/Po that has 125 neutrons?

a)

125

b)

84

c)

209

d)

6

38.

Which of the following is not true?

a)

The mass number of an element never changes.

b)

The atomic number of an element never changes.

c)

The number of electrons of an atom changes with ionic charge.

d)

The number of neutrons of an atom of an element is dependent on the isotope of the element.

39.

Which of the following is true?

a)

A cation is positively charged because it gains electrons.

b)

A cation is positively charged because its atomic number is constant.

c)

An anion is negatively charged because it gains electrons.

d)

An anion is positively charged because it loses electrons.

40.

In an ionic bond, nonmetals ___________ electrons and become _____________ and metals ____________ electrons and become ______________.

a)

gain, cations, lose, anions

b)

gain, anions, lose, cations

c)

lose, anions, gain, cations

d)

lose cations, gain, anions