Scientists
Molequles
Atoms
Periodic table
More People
100
Fredrick Bohler
Who crystalized urine; mixed together 2 inorganic substances that were also crystalized to create fake urine ?
100
Lusac and Avagadro
Which Scientist discovered molecules?
100
the number of protons in the nucleus of each atom of that element
What is atomic number
100
What is the periodic table?
What is the list of elements categorized by atomic number, mass, and color?
100
August Kekulet
Who created line structures; discovered all organic substances contain one or more molecules ?
200
John Dalton
Who discovered oxygen, hydrogen, and carbon were made of atoms; created atomic theory ?
200
What is matter made of atoms of only one kind
What is an element
200
weighted average mass of the isotopes of an element
What is atomic mass
200
What are 118 elements
How many elements are in the periodic table?
200
Murie Curie
What is a female French Scientist who worked with radioactivity?
300
Antwon Lavosiea
Who calls Presley's discoverey oxygen and makes a table of elements ?
300
negatively charged particles in an atom
What is electrons
300
matter that has the same composition and properties throughout
What is substance
300
Demetrey Mendelea
Who created the periodic table ?
300
Joseph Tompson
Who discovered electrons
400
Leonardo da Vinci
Which scientists/ artist discovered air was made of 2 different gasses?
400
positively charged particles in an atom
What is a proton
400
substance whose smallest unit is made up of atoms of more than one element bonded together
What is substance
400
atomic number
What is the amount of protons and neutrons in the nucleus?
400
Humphrey Davey
Who created electro chemistry?
500
Joseph Presley
Who discovered oxygen (but didn't realize it) ?
500
neutrally charged particle in an atom
What is a neutron
500
when two or more substances come together but don't combine to make a new substance
What is mixture
500
What is the atomic number for helium?
What is 1?
500
Leo Bakin
Created synthetic plastic
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