Chemistry Test

Front 1

Atomos

Back 1

This was discovered by democratius. He stated that matter is made up of tiny atomos. This is the greek word used to describe the smallest particle that could not be broken down. It also means indivisible.

Front 2

Aristotle

Back 2

He believed that matter is a mix of earth,air,water and fire.

Front 3

Alchemists

Back 3

They thought metal could be changed into gold. Preformed many experiments. THey created the scientific method and many lab instruments.
They also discoverd other instruments for example plaster of paris.

Front 4

Andreas Libau

Back 4

Published a book call Alchemia. It was about how to prepare chemicals

Front 5

Robert Boyle

Back 5

experimented with gases
was convinced that matter was made up of timny particlue that joined.
tiny particles cominbed toghther to make differant substances.

Front 6

Antoine Lavoisier

Back 6

Known as the fater of modern chemistry.
Studied chemical interactions
developed a system for naming chemicals. He did this becuase it would be easier for researchers.

Front 7

John Dalton

Back 7

suggested that matter is made up of atoms.

Front 8

Atomic Theory

Back 8

1. All matter is made up of tiny particles called atoms.
2. All atoms of the same elements are identical.(especially in mass and size)
3. Atomes of differnat elements differ in mass and size
4. Atoms combine in whole number rations to produce compounds.

Front 9

Atom

Back 9

smallest portion of an element that retains its properties.

Front 10

Billard ball model

Back 10

Created by John Dalton. Basically makes the elements look like balls colliding.

Front 11

JJ Thomosn

Back 11

experimentation and observation revealed that atoms had negativce charges in them
Atoms contained electrons
Atoms are positively charged spheres with electrons in. there are smaller particles than atoms. This also explains the Raisin Bun model

Front 12

Hantaro Nagaoka

Back 12

investigations lead to modify the model.
Atoms had a positivley charged sphere being orbited by small electrons. Hence the mini solar system model.

Front 13

Ernest Rutherford

Back 13

found that the atom was mainly empty space with a positively charged center called the Nucleus.

Front 14

Nucleus

Back 14

A very dense, positivley charged centre of the atom. Explains the planetary model

Front 15

Niels Bohr

Back 15

Worked with Rutherford. He suggested that electrons orbit a specific track. an orbital is what he called it. He created the Bull's eye target model. It shows how the electrons centre the middle nucleus

Front 16

Protons

Back 16

particles in the atoms nucleus atom that has a positive charge.

Front 17

Neutrons

Back 17

particles in the nucleus with zero charge

Front 18

Quatuam mechanics

Back 18

Basically the only thing added on is the electron cloud surronding the orbitals