People
What did Mendeleev do?
Organized according to Atomic #
Which came first: Plumb Pudding or Orbitals?
Plumb Pudding
What is elemt #8?
Oxygen
Is ripping fat clouds a chemical or physical change?
Physical.
William Crookes
Why does Bohr matter in Chemistry?
Bohr model of the atom (space)
What century did Lavoisier live in?
1700's
What is Element #2
Helium
Change in molecular structure.
What is a millimeter in terms of kilometers
1/10,000 of a kilo.
What was Dalton's nationality?
English
Who is Democritus?
Greek Philosopher
What is element K?
Potassium
How do your eyes receive light?
Rods and Cones
How many kilograms are in 1 gram?
.001
What Dalton s first two of four observations?
1) All matter is made of atoms.
2) Atoms are individual and indestructible.
What did Democritus hypothesis?
Atoms
What is element Mg?
Mercury
Is an example of a phase change: The smoke burning off wood?
No. That is a chemical change.
What is a formation reaction?
Molecules coming together to form another molecule.
Oxygen, Carbon, Silicon.
When was the Crux tube experiment?
1895
Is how many valence electrons does Og have?
8
What does noble mean?
Unreactive/doesnt react with much.
What is the decomposed structure of C3H2Fr15?
C2+H1+Fr1