Greek Philosopher that said all matter around us is made up of invisible tiny particles called "atomos"

means "uncuttable" or "unbreakable"

said that all matter was made of only 4 elements

British schoolmaster and chemist who borrowed the concept of atomos to explain the laws of chemistry

discovered by Antoine Lavoisier

also know as the "Law of Definite Proportion"

Law of Constant Composition was discovered by who?

This law was also discovered by John Dalton

English Chemist who proposed that the structure of atom is somehow related to "electricity"

He Discovered electrons charge to mass ratio 1.76×10⁸ c/g

He Constructed a glass tube with two metal plates inside it

it is a tube that has a piece of metal called an electrode, at each end

Joseph John Thomson or J.J. invented the_____, a characteristic dish of British cuisine.

3 Properties of Electrical Charges

American Physicist who invented oil dropped experiment

he discovered the 3 types of radiation alpha beta gamma

He also discovered the proton

He discovered Neutrons

he discovered the concept of atomic numbers

Father of Bohr Theory of atom

is the spontaneous emission of high-energy radiation by an atom

They studied the radioactivity and was first observed by Henri Becquerel

Number of protons in the nucleus of an atom

is the total number of protons and neutrons in the nucleus of an atom

are atoms of the same element with different masses

Is the study of matter, its properties, and the changes it undergoes

is anything that has mass and takes up space

3 States of Matter

Composition of matter

has distinct properties and a composition that does not vary from sample to sample

a substance which can not be decomposed to simpler substances

is a substance which can be decomposed to simpler substances because it is made up of more than one element

building blocks of matter

A homogenous mixture is also called a

It is uniform in composition throughout. There is only one phase of matter observed in a homogeneous mixture.

is a mixture in which the composition is not uniform throughout the mixture.

can be observed without changing a substance into another substance.

can only be observed when a substance is changed into another substance

are independent of the amount of the substance that is present

depend upon the amount of the substance present.

are changes in matter that do not change the composition of a substance

result in new substances

solid substances are separated from liquids and solutions.

uses differences in the boiling points of substances to separate a homogeneous mixture into its components.

This technique separates substances on the basis of differences in the ability of substances to adhere to the solid surface, in this case, dyes to paper.

is the capacity to do work or transfer heat.

is the energy transferred when a force exerted on an object causes a displacement of that object

is the energy used to cause the temperature of an object to increase.

is any push or pull on an object.

is the energy of motion

of an object depends on its relative position compared to other objects

is a measure of the amount of material in an object. SI uses the kilogram as the base unit. The metric system uses the gram as the base unit.

is a measure of distance. The meter is the base unit.

is considered the “hotness and coldness” of an object that determines the direction of heat flow

is a measure of how closely individual measurements agree with one another.

refers to how closely individual measurements agree with the correct, or “true,” value.

All digits of a measured quantity, including the uncertain ones, are called

1lb = ??kg

1kg=??lbs

1ton=??kg

1oz=??g

1in=??cm

1m=??cm

1m=??ft

1ft=??inches

1m=??yd

1km=??mile

1km=??m