What’s a Matter?

What is Matter?

Matter: Anything that takes up space and has mass Atom: Basic unit of matter Chemistry: The study of matter and all the changes it

undergoes. Element: Kind of atom (oxygen, hydrogen etc…) Molecule: 2 or more atoms Compound: 2 or more elements Is O2 a compound or molecule? Is H2O a compound or element?

What Changes Does Matter Undergo?

Physical: The substance is still the same

Chemical: A new substance is formed

What is a solid, liquid or gas?

Help Marvin the Martian understand what a solid, liquid and gas are!

Draw what solids, liquids, gases look like

What would happen if we increase the temperature?

What would happen if we decreased the temperature?

What does an atom look like?

Atoms contain a nucleus with protons (+) and neutrons (no charge) and have electrons (-) flying around

Neils Bohr: Proposed the planetary model after studying a hydrogen atom in 1915.

Electron Cloud Theory

How do compounds form?

Ionic Bond: An electron is transferred from one element to another (metal to nonmetal)

Covalent Bond: Electrons are shared (nonmetal to nonmetal)

Metallic Bond: Sea of electrons (Metal to Metal)

CLASSIFYING MATTER

How do we use the periodic table of elements?

Group IA: Alkali Metals Group VIIIA (O): Noble Gases

Group IIA: Alkaline Earth Metals Other Nonmetals

Group B: Transition Metals Metalloids

Group VIIA: Halogens Other Metals

How do we use the periodic table?

(Number of protons/electrons)

( protons + neutrons)

Which element has the atomic # 10?

Which element has a mass of 4 amu?

Which element is in period 3 and is a Noble Gas?

64

29 Cu +2

How many protons?How many protons?How many electrons?How many electrons?How many neutrons?How many neutrons?

Who Am I?

What are acids and bases?

ACIDS BASES

TASTE SOUR BITTER

FEEL STINGS SLIPPERY

REACTIONS YES / METAL NO / METALS

CONDUCTS ELECTROLYTE ELECTROLYTE

HOW DO WE MEASURE ACIDS AND BASES?

INDICATORSA SUBSTANCE THAT TURNS ONE

COLOR IN AN ACIDIC SOLUTION AND ANOTHER COLOR IN A BASIC

SOLUTIONSOME INDICATORS ARE:

LITMUS: DYE THAT COMES FROM A LICHEN

PHENOLPHTHALEIN: INDICATES ONLY BASES

UNIVERSAL INDICATOR: ACID, NEUTRALS, BASES CABBAGE JUICE: ACIDS, NEUTRAL, BASE