Quiz: History of the atomic theory! Atoms are the smallest units of matter, and they combine to form compounds. Do you know that a chemical reaction is only said to have occurred if atoms have been rearranged? Do take up the quiz below and get to see what you know about the studies scientists have undertaken and theories made up to explain atoms.
Democritus
Neils Bohr
Werner Heisenbergy
Ernest Rutherford
Indivisible
Small
Matter
Fire
Earth
Wind
Water
Hydrogen
John Dalton
Democritus
Aristotle
Electrons
Protons
Neutrons
Believed the atom was a sphere of positive matter packed with negative electrons (plum pudding model)
Believed there that matter contained 4 elements - earth, fire, wind, and water
Believed that matter is composed of space
Father of the Nuclear Age
Father of the Periodic Table
Father of Chemistry
Ernest Rutherford
Aristotle
Werner Heisenbergy
Lebron James
Are mostly empty space
Have a dense nucleus
Have a positively charged nucleus
show opposite charges attract
Electrons moved around the nucleus at fixed energies and distances.
Electrons can jump from one level to another but don't stop in the distances between the levels. e
Protons and electrons equal each other in a neutral atom
Werner Heisenbergy
Coach Pearson
Democritus
Neils Bohr
Democritus
Werner Heisenbergy
Ernest Rutherford
Aristotle
All matter consists of indivisible particles called atoms
Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
Atoms cannot be created of destoryed
Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms
Atoms are very small
Atoms make up the elements on the Periodic Table
Atoms of the same element can combine in more than 1 ratio to form 2 or more compounds
The atom is the smallest unit of matter that can take part in a chemical reaction