1. Starter
Speed
What is the speed of an object traveling a distance of 25 meters in 25 seconds?
What’s the known?
What’s the unknown?
Which formula do you use?
Solve.
What is the distance of an object traveling with a speed of 10 m/s in 2 seconds?

2. Atom Molecule
Day 52

3. Matter
The term matter describes all of the physical substances around us
Matter is anything that has mass and takes up space
The Universe is made up of matter and energy

4. Matter
Matter is made up of atoms.
An atom is the smallest whole particle of matter.
Sub-Atomic particles are smaller than atoms and are the tiny particles that an atom is made of.

5. Atomic Model
Electrons orbit the nucleus.

6. Atomic Structure
Nucleus
Protons
Neutrons
Electrons
Orbit nucleus

7. Much larger and heavier than electrons
Atomic Structure
Protons
Much larger and heavier than electrons
Protons have a positive charge (+)
Located in the nucleus of the atom 
Protons identify the element
Each proton is 1 amu (atomic mass unit)

8. Large and heavy like protons Neutrons have no electrical charge
Atomic Structure
Neutrons
Large and heavy like protons
Neutrons have no electrical charge
Located in the nucleus of the atom
neutrons identify the isotope
neutrons are 1 amu

9. very dense region consisting of protons and neutrons
Atomic Structure
Nucleus
very dense region consisting of protons and neutrons
at the center of an atom
almost all of the mass of an atom is located in the nucleus

10. Tiny, very light particles Have a negative electrical charge (-)
Atomic Structure
Electrons
Tiny, very light particles
Have a negative electrical charge (-)
Move around the outside of the nucleus
Electrons identify the ion

11. Read Periodic Element

12. Atomic Number = number of protons
Describing Atoms
Atomic Number = number of protons
In a neutral atom, the # of protons = the # of electrons
Atomic Mass= the number of protons + the number of neutrons
APE MAN
Atomic Number = Protons = Electrons
Mass = Atomic Number + Nuetrons

13. Find the chemical symbol.
Gold
Fluorine
Sulfur

14. Find the names of these elements.
Mg: N:
He:

15. Identify the element
Atomic Number of
6 =
14=
25=

16. Find the atomic mass H:
Neon:
Al:

17. Exit Slip