Elements
Au
What is gold?
Multiple atoms bonded together.
What is a molecule.
The smallest building blocks of matter.
What are atoms?
Earnest Rutherford, Niels Bohr
Who created the Bohr and Rutherford models?
The periodic table organizes.
What are elements?
Two elements chemically combined.
What is a compound?
Has and definite and constant composition.
What is a pure substance?
Protons and Neutrons
What is in the nucleus.
1 Oxygen Atom, 2 Hydrogen Atoms
What is a water molecule?
118
What are how many elements on the periodic table?
Fe
What is iron?
Has multiple atoms held by valance electrons.
What are molecules?
Must have at least one of these.
What are protons?
A single molecule made up of carbon atoms.
What is a perfect diamond?
Everything in it has the same number of valance electrons.
Two or more elements joined together that can easily be took apart.
What is a mixture?
90 million
How many known kinds of molecule?
What is the number of electrons that fit in the second orbital ring in an atom?
Amedeo Avogadro
Who invented the word molecule?
Dmitri Mendeleev
Who is the creator of the periodic table?
Ti
Compounds that contain carbon.
What is an organic compound?
When an atom is not happy (stable).
What happens when the atom does not have 8 valence electrons?
Jean Perrin
Who proved the existence of molecules?
Sulfur, boron, and arsenic
What are elements from the non metals group?