11 12Atom Structure

Starter

Practice

Application: Draw circles

Connection:

Exit: Paste in sheet

Paste Atom Structure Notes

here

1 2 3

Sep 1, 2015 Sep 1, 2015

Explain Bohr’s atomic Theory

EQ: How would you describe the structure of an atom? t

atomic model?

Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-2

8/28 Periodic Table/ Formula 3-4

8/28 Tools/ Measurement 5-68/28 Lab Report/ Investigations 7-8

8/31 Atomic History 9-10 9/1 Atomic Structure 11-12

Table of Contents

Agenda 1. Starter

2.Atomic Structure Notes 3. Atomic Structure Activity

4. Exit

Observation

Sand Sugar Water

Atomic Structure Notes

• The smallest part of a chemical element that has all the properties of that element is the atom.

• Everything in our world is made up of electrons, protons, and neutrons.

Practice

Nucleus • The nucleus is found in the center of the atom.

• It consists of protons and neutrons which are almost the same size because of the energy forces that act on them.

• The mass of the atom is made up of the mass of the proton and the neutron.

Nucleus:Protons & Neutrons

entire

if an atom was the size of a football stadium, then a proton would still be smaller than a marble.

Protons• All protons are exactly the

same and are found inside atoms. They have a positive charge

• Different atoms have different numbers of protons; what makes an atom be a helium or a gold atom depends on how many protons it has.

• The mass of the proton is equal to 1 atomic mass unit (amu)

an atom has equal numbers of protons

And electrons

Neutrons

• The neutron is a sub-atomic particle of the atom and is found in all elements except hydrogen. It has a neutral charge.

• The neutron and the proton make up the mass of the atom.

• Without the neutron, the protons would push away from each other.

Electrons• Electrons are found in clouds that

surround the nucleus of an atom. They have a negative charge

• Those clouds are specific distances away from the nucleus and are organized into shells (levels) using the 2-8-8 configuration.

• Because electrons move so quickly, it is impossible to see where they are at a specific moment in time.

Application Create a model of the following

atom then draw it into your spiral:Protons:

4

Neutrons:

5

Electrons:

4

P: 4N:5

--

-

-

Application Create a model of the following

atom then draw it into your spiral:Protons:

9

Neutrons:

10

Electrons:

9

Application Create a model of the following

atom then draw it into your spiral:Protons:

9

Neutrons:

10

Electrons:

9

P: 9N:10

--

-

-

-

-

-

-

-

Application Create a model of the following

atom then draw it into your spiral:Protons:

7

Neutrons:

7

Electrons:

7

Application Create a model of the following

atom then draw it into your spiral:Protons:

7

Neutrons:

7

Electrons:

7

P: 7N: 7

--

-

-

-

-

-

Connection Observe the atom then count and

show the number of subatomic particles in your spiral:

Protons:

__

Neutrons:

__

Electrons:

__

3

4

3

Connection Observe the atom then count and

show the number of subatomic particles in your spiral:

Protons:

__

Neutrons:

__

Electrons:

__

7

4

7

Connection Observe the atom then count and

show the number of subatomic particles in your spiral:

Protons:

__

Neutrons:

__

Electrons:

__

6

6

6

Exit

Name of Subatomic Particle

Location within the Atom

Electrical Charge

Relative mass

Inside the nucleus

1 amu

Neutral

1/1836 amu

Complete chart and glue in your journal

11 12Atom Structure

Starter

Practice

Application: Draw circles

Connection:

Exit: Paste in sheet

Paste Atom Structure Notes

here

1 2 3

Sep 1, 2015 Sep 1, 2015

Explain Bohr’s atomic Theory

EQ: How would you describe the structure of an atom? t

atomic model?