You Will Need:1. Pencil, Colored pencils2. Assignment Log #4 – 3. Textbook – Open to P.T.

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•Smallest unit of an element that keeps the properties of that element

•If broken apart; no longer that element.

•A pure substance, One type of atom

•Cannot be broken down into simpler substances by chemical means

Each element has a UNIQUE amount of PROTONS. Protons and Neutrons exist together in the ___________________ of the atom.

Surrounding the nucleus, is the electron cloud are the negatively charged particles called _______________.

Nucleus

Electrons

1. Electron Configurations can be seen through the Bohr Model or by using Wave Mechanics.

2.For the simpler atoms we will be using the Bohr Model.

1.From the Periodic Table, we can draw the Bohr Model showing the contents of the nucleus and the # of shells with electrons.

P=1N=0

2

Row # # of Energy Levels

1 1

2 2

3 3

Row # # of Elements in the

Row

Maximum # of

Electrons for that

Energy Level

Valence

1 # of electron

s in outermost shell

2

3

2

8

8

2

8

8

Element

Information Bohr Model

Helium

Row:

# of Protons:

# of Neutrons:

# of Electrons:

1

2

4-2=22

P=2N=2

2

Element Family # + Valence

Electron Dot Diagram(LEWIS DOT)

Helium F= 8V = 2

He

Element

Information Bohr Model Lewis Dot

Carbon

Row:

# of Protons:

# of Neutrons:

# of Electrons:

2612-6=6

6

P=6N=6

2 4 C

• Two or more atoms bonded (chemical forces)

• Form compounds

• Smallest unit of any compound that keeps the properties of that compound.

• A pure substance

• A substance made up of atoms from two or more different elements bonded.

• A combination of two or more substances blended together

• No set ratio of ingredients

• Homogeneous: 2 or more things evenly blended and disappear into each other.

• Solute – Smaller quantity

• Solvent – Larger quantity

• Solution – a homogeneous mixture

• Heterogeneous: 2 or more things put together and still can be seen.

• No set RATIO.

1. We know the definition of Element, Compounds & Mixtures

2. What do their particles look like?

1.1. Test #3 Corrections & Test #3 Corrections & Signature – Signature – Due Wed.Due Wed.

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Compound

Mixture

1. Go to class WebPage.

2. Class Calendar

3. This Week (Nov. 30th- Dec. 4th)

4. Click on “Can You ID?”