Moles And Such Flashcards
How do thou calculate protons
Proton number on pt
How many atoms in ANY MOLE
6.02x10^23
How do you calculate electrons
Same number as protons
How do you calculate neutrons
Mass minus protons
What atomic particle did Thomson discover
Electron
Plumb pudding
What atomic particle did Rutherford discover
Proton
Also nucleus
What did Chadwick discover
Neutron
How do you identify an atom
Number protons
Thomson atomic model
Plum putting
Bohr model
Nucleus with protons and neutrons and electrons orbiting
Dalton model
Sphere
Modern model
Cluster of protons and neutrons around nucleus cloud of electrons
How do you calulate mass/Amu’s
Add mass together
How do you find the mass per atom
Amour of atoms x 6.02 E 23
What experiment did Rutherford do
Gold foil
Electron charge
0
-1e
Proton charge
+1
1p
Neutron charge
1
0 n
Founder of atomic theory
Democritis
Atomic theory
Matter is composed of indivisible particles called atoms
Alchemy
Change materials into gold
Law of definite proportions
Compound contains same elements in exactly same proportions by mass regardless of size of sample and source of sample
Law of conservation of mass
Mass of products=mass of reactants
Law of multiple proportions
Mass of one element that combines with fixed mass of another
Different compounds formed
From two different elements
Dalton’s atomic theory
Atomic theory: all matter is made of invisible and indivisible atoms
Atoms of different elements differ in their physical and chemical properties
Chemical reactions: combination, seperation, rearrangement
All atoms of a given element are identical in their physical and chemical properties(not true)
Atoms of different elements combine in simples WHOLE NUMBER ratios to fo compounds
Subatomic particles
Solid particle
Indivisible
Thomsons experiments
Cathode ray tube
Discovered electrons
