Topic: Chemistry Aim: Describe the structure of an atom. Do Now: 1. Take out your Atoms reading notes. 2. Length #3 ISA and Volume #1 ISA HW: Length and Volume Review Sheet (both sides) Length and Volume Exam on Tuesday Morning Review for exam on Tuesday morning at 7:20am (ROOM 326)

LENGTH # 3 ISA 70.7cm 707mm

VOLUME #1 ISA 13mL

Matter Anything that has MASS and takes up space (VOLUME)

1. Identify the building blocks of matter. Atoms

Meaning of the term ATOM Around 2,500 years ago, the ancient Greek philosopher, Democritus, was sitting around just thinking. He was thinking about cutting stuff up and came up with the idea that there must be a point where you could no longer cut something any smaller. He named the atom after the Greek word atomos, which means 'that which can't be split.'

Atomos: “That which cannot be cut.” Indivisible

2. Identify the subatomic particles that make up an atom. Protons, neutrons and electrons

The number of protons in an atom. 3. What is an element’s atomic number? The number of protons in an atom.

Identify the atomic number of oxygen. Support your answer.

Observe the diagram below of a Carbon atom. Identify the atomic number Observe the diagram below of a Carbon atom. Identify the atomic number. Support your answer.

4. Describe what the nucleus of an atom consists of. Protons and Neutrons

5. Where are elections located in an atom? Outside the nucleus

“Orbit” the nucleus in the electron cloud.

6. Explain the meaning of the phrase “neutrons are neutral.” Neutrons do not have a charge. Neutrons are neither NEGATIVE or POSITIVE.

7. Fill in the table below with the appropriate charge of each particle. Protons Neutron Electron

SUBATOMIC PARTICLE CHARGE (positive, negative or neutral) LOCATION of subatomic particles (inside the nucleus OR outside the nucleus) Protons Electrons Neutrons POSITIVE INSIDE THE NUCLEUS NEGATIVE OUTSIDE THE NUCLEUS NEUTRAL INSIDE THE NUCLEUS

Let’s review: Identify the basic building block of matter. Identify the THREE subatomic particles that make up an atom. Describe the atomic number of an atom. Describe the structure of an atom.

Review: All matter is made up of cells atoms molecules compounds

A positively charged particle is an electron    a neutron   a proton    an isotope

Which of the following would be found outside the nucleus of an atom? protons  electrons    neutrons   protons and neutrons

A negatively charged particle is an electron    a neutron   a proton    an isotope

The subatomic particle that does not have a charge is the electron    neutron   proton    isotope

The subatomic particles found inside the nucleus are electrons and protons    neutrons and electrons    protons and neutrons    protons

The atomic number represents the number of protons    number of electrons   number of protons and neutrons   number of protons and electrons

Identify the type of solid in the diagram. REGULAR SOLID 2. Determine the volume to the nearest tenth. L x W x H 10.0cm x 5.0cm x 3.0cm = 150.0cm3

Identify the type of solid the toy dinosaur is. IRREGULAR SOLID 2. Determine the volume of the toy dinosaur. 0.8mL (5.6mL – 4.8mL) 3. Identify the name of this method. displacement

Identify the length of the nail in cm to the nearest tenth. In mm?

Oxygen atom + -

- - + + - + - + + + - + + - - - Oxygen atom Nucleus Neutron Proton Electron -

http://www. youtube. com/watch. v=lP57gEWcisY http://www. youtube http://www.youtube.com/watch?v=lP57gEWcisY http://www.youtube.com/watch?v=R1RMV5qhwyE

Activity: Element or Compound???? Carbon Carbon dioxide (CO2) Water (H2O) Nitrogen Glucose (C6H12O6) Oxygen (O2)

2. Which of the following is not an element? oxygen sodium chloride hydrogen nitrogen

5. A chemical formula like CO2 represents an element   an atom    an electron    a compound

6. A substance made up of two or more elements that have chemically combined is a mixture  an atom    a compound an element

7. A substance that cannot be changed into simpler substances by a chemical change is called a (an) element. liquid. solid. mixture.

8. Al, Cu, N, and O are symbols for compounds. elements. mixtures. molecules.

9. A substance that contains only one kind of atom is called a (an) compound. molecule. element. nucleus.

10. The fact that iron cannot be changed into a simpler form indicates that iron is a (an) compound. molecule. element. mixture.

11. If an element is divided into smaller and smaller parts, the smallest particle obtained would be a (an) molecule. compound. mixture. atom.

http://www.youtube.com/watch?v=d0zION8xjbM http://www.youtube.com/watch?v=O5iaw5WNuB0&feature=related