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Chapter 4 Atoms Chapter 4 Atoms

Review activityReview activity

Question 1Question 1

Who believed matter could

only be broken down into the

4 elements?

Who believed matter could

only be broken down into the

4 elements?

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Answer 1Answer 1

AristotleAristotle

Question 2Question 2

Fill in the following table: Parts of an AtomFill in the following table: Parts of an Atom

Particles Charge w/number Location

1.

2.

3.

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Answer 2Answer 2

Particles Charge w/number Location

1.Proton +1 In the

nucleus

2. Neutron 0 In the

nucleus

3. Electron -1 Outside the

nucleus

Question 3Question 3

Create a timeline with all the

scientists involved in the

development of the atomic

theory……..

Create a timeline with all the

scientists involved in the

development of the atomic

theory……..

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Answer 3Answer 3

Question 4Question 4

Who discovered that the atom can

be divided?

Who discovered that the atom can

be divided?

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Answer 4 Answer 4

ThomsonThomson

Question 5Question 5

Identify one part of Dalton’s Atomic

Theory.

Identify one part of Dalton’s Atomic

Theory.

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Answer 5Answer 5

1. All matter is composed of extremely small particles called atoms.

2. All atoms of a given element are identical in size, mass, and other properties.

3. Atoms cannot be divided, created, or destroyed.

4. Atoms of different elements can combine in simple, whole-number ratios to form compounds.

5. In chemical reactions, atoms are combined, separated, or rearranged.

1. All matter is composed of extremely small particles called atoms.

2. All atoms of a given element are identical in size, mass, and other properties.

3. Atoms cannot be divided, created, or destroyed.

4. Atoms of different elements can combine in simple, whole-number ratios to form compounds.

5. In chemical reactions, atoms are combined, separated, or rearranged.

Question 6Question 6

Bohr’s model states that

electrons can be found in

specific ________________.

Bohr’s model states that

electrons can be found in

specific ________________.

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Answer 6Answer 6

Energy levelsEnergy levels

Question 7Question 7

Fill in the following table about orbitals.Fill in the following table about orbitals.Type of orbital Number of

shapes

Total electrons

1.

2.

3.

4.

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Answer 7Answer 7

Type of orbital Number of

shapes

Total electrons

1. s 1 2

2. p 3 6

3. d 5 10

4. f 7 14

Question 8Question 8

What are the building

blocks of everything?

What are the building

blocks of everything?

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Answer 8Answer 8

Atoms

Question 9Question 9

Electrons move like a _________, making it

hard to determine there ___________.

Electrons move like a _________, making it

hard to determine there ___________.

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Answer 9Answer 9

1.Waves

2.Location

Question 10Question 10

What determines the mass

of an atom?

What determines the mass

of an atom?

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Answer 10Answer 10

Protons and NeutronsProtons and Neutrons

Question 11Question 11

Draw an atom and identify the

following parts in your drawing:

Electron, proton, neutron, nucleus,

energy level

Draw an atom and identify the

following parts in your drawing:

Electron, proton, neutron, nucleus,

energy level

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Answer 11Answer 11

Question 12Question 12

Identify

the

following

Elements.

Identify

the

following

Elements.

1.

2.

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Answer 12Answer 12

1.Aluminum

2. Seaborgium

Question 13Question 13

What makes an isotope

different from other atoms

of the same element?

What makes an isotope

different from other atoms

of the same element?

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Answer 13Answer 13

• Number of neutrons

Question 14Question 14

What is the formula used to

find the neutrons of an

atom?

What is the formula used to

find the neutrons of an

atom?

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Answer 14Answer 14

Mass number – atomic numberMass number – atomic number

Question 15Question 15

What is Avogadro’s number?What is Avogadro’s number?

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Answer 15Answer 15

6.0221367 x 10236.0221367 x 1023

Question 16Question 16

How many

neutrons?

How many

neutrons?

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Answer 16Answer 16

146 neutrons146 neutrons

Question 17Question 17

What causes an electron to jump

between energy levels?

What causes an electron to jump

between energy levels?

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Answer 17Answer 17

Gaining or losing eneryGaining or losing enery

Question 18Question 18

What was used as the bases

for massing all elements?

What was used as the bases

for massing all elements?

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Answer 18Answer 18

1/12 the mass of a carbon-12

atom.

1/12 the mass of a carbon-12

atom.

Question 19Question 19

When neutrons change, the

atoms ______ changes, but

it’s ______ does not change.

When neutrons change, the

atoms ______ changes, but

it’s ______ does not change.

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Answer 19Answer 19

Mass

Charge

Mass

Charge

Question 20Question 20

The outermost energy

level of an atom

contains _____________.

The outermost energy

level of an atom

contains _____________.

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Answer 20Answer 20

Valence electronsValence electrons