Who proposed the atomic theory?

Dalton

Who discovered the electron?

Thomson

Who developed the nuclear theory?

Rutherford

What is the equation for heat capacity?

Q= M x Cs x △T

What does M represent in the heat capacity calculation?

Mass

What does Cs represent in the heat capacity calculation?

Specific heat capacity

What does △T represent in the heat capacity calculation?

Temp change / T2 - T1

What is P when reading an element?

Protons

What is N when reading an element?

Neutrons

What is E when reading an element?

Electrons

Protons have what charge?

Postive

Neutrons have what charge?

Neutral

Electrons have what charge?

Negative

Equation to find Density.

D=M/V (mass over volume)

Equation to find Volume.

V=M/D (mass over density)

Equation to find Mass.

M= D x V (density times volume)

Classify matter - Elements

Found on the periodic table.

Classify matter - Compounds

A substance made of 2 or more elements.

Classify matter - Heterogeneous Mixture

A mixture, of 2 or more substances, in which the composition is not uniform. Ex. Soil , Ice cream sundae.

Classify matter - Homogeneous Mixture

A mixture, of 2 or more substances, is uniform. Ex. Coffee , saltwater.

7 diatomic elements

hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, iodine. Numbers on periodic table 1, 7, 8, 9, 17, 35, 53.

Where are Alkaline metals on the periodic table?

1A & 2A

Where are Halogens on the periodic table?

7A

Where are Noble Gases on the periodic table?

8A

How many Sig Figs does 8.326 have?

4 Sig Figs

How many Sig Figs should 8.29 x 5.329 have?

3 Sig Figs

How many Sig Figs should 8.29 + 6.968 have?

4 Sig Figs

How many Sig Figs should 8.29 - 6.968 have?

3 Sig Figs