1. Matter How DO atoms and molecular structures AFFECT THE properties
of matter that we see and feel?

2. The Building Blocks of Matter
Matter is anything that has mass and takes up space.
Are Heat and Light Matter?
Heat and light are not matter, because they have no mass and do not take up space.

3. Atoms matter is made up of tiny particles called atoms
building blocks of matter

4. One Penny is made up of 20,000,000,000,000,000,000,000 atoms of Copper and Zinc

5. Protons and Neutrons Three basic particles make up an atom: protons
electrons
Protons - particles that have a positive electric charge
Neutrons - have no electric charge

6. Elements made of only ONE type of atom
cannot be broken down into simpler substances by normal chemical or physical means.

7. Counting Atomic Particles
number of protons in an atom depends on the element
All atoms of the same element have the same number of protons
For example, all iron atoms contain 26 protons, and all atoms with 26 protons are iron atoms.
atomic number = #protons

8. Electrons particles with a negative charge
they exist outside of the nucleus
grouped into energy levels, each holding only a specific number of electrons
form a cloud around the nucleus

9. How many Electrons?
Neutral atom: number of protons = number of electrons
This makes the overall charge of the atom zero.
Therefore, for a neutral atom:
Atomic number = number of protons = number of electrons

10. How many Neutrons?
Unlike protons, atoms of the same element can have different numbers of neutrons
number of neutrons in an atom isn’t found on the periodic table; Instead, you need to be given the atom’s mass/weight number

11. How many Neutrons?
mass/weight number = number of protons + number of neutron
neutrons = mass number – atomic number (# protons)
For example:
if the mass number of an atom is 14 and its atomic number is six; it has eight neutrons

12. Counting atomic particles…..

13. Interactions of Atoms
There are about 90 naturally occurring elements on Earth.
So few elements produce so many different things because elements can combine in countless ways.
Each combination of atoms is unique.

14. The Structure of Matter
types of atoms in matter and how they attach to each other give matter its properties

15. MOLECULE
-TWO OR MORE ATOMS JOIN CHEMICALLY

16. Compounds
Compound - contains atoms of more than one type of element chemically combined
Water is a compound in which two hydrogen atoms are bonded to each oxygen atom.

17. Compounds
Compounds are represented by chemical formulas that show the ratios and types of atoms in the compound. Ex- H2O
The properties of compounds often are very different from the properties of the elements that combine to form then.

18. Compounds
Sodium is a soft, silvery metal, and chlorine is a greenish, poisonous gas, nut the compound they form is the white, crystalline table salt you use to season food.
Brainpop- Compounds and Mixtures