Alchemy v. Chemistry, Ions, etc. Flashcards
When was Belatekallin alive?
1200 B.C.
What Job did Belatekallin have
Perfume Maker
What separation technique did Belatekallin use?
Distillation (Separation using different boiling points).
When were the Ancient Greeks Alive?
450 B.C.
What did the Ancient Greeks beleive in?
4 Elements: Earth, Air, Fire, Water.
When was Jabir Ibn Hayyan alive?
721-815
How did Jabir Help Science?
He made it less of a magical thing and more of a scientific thing
What did Jabir create?
Glassware.
When was Paracelsus born?
1493
What did Paracelsus think Man consisted of?
Salt (body), Sulfur (Soul), Mercury ( spirit).
What did Paracelsus think he could do with Salt, Sulfur, and Mercury?
Make an immortality potion.
What did Paracelsus desire?
The elixir of life to make him immortal.
When did Alchemy arrive in western Europe?
500 A.D.
Contributions of Alchemy (Early Chemistry).
1.The elements mercury, sulfur, and antimony were discovered.
2. Element properties were discovered.
3. Creation of Alloys
4. Lab procedures were developed, such as acid prep.
5. Seperation techniques such as distilation.
How did Alchemists try to hide their discoveries?
They would use symbols or pictures.
Things unique to alchemy.
- Try to find the elixir of life.
- Used alchemy for monetary gains.
- Seen as Magic.
Things unique to Chemistry.
- Try to discover new things for science.
- Used for medicinal purposes.
- Uses scientific principles and methods.
When was Democritus alive?
460-370 B.C.
What did Democritus Beleive in?
- There are various basic building blocks from which all matter is made.
- Everything is composed of small atoms moving with nothing but empty space between them.
Were Democritus’ ideas accepted?
No, they were rejected by leading philosophers.
What time frame was Democritus close to?
The Ancient Greeks.
What did Democritus create?
The first concept of an atom.
Candy Model of Democritus’ atom.
m&m
When was Dalton Alive?
1766-1844
What were Dalton’s ideas?
- Each element is composed of extremely small particles called atoms.
- All the atoms of a given element are identical, but differ from those of dry other elements.
- Atoms may move from one substance to another, but atoms can’t be created destroyed, or transformed.
When did Dalton introduce his ideas?
1803
What is Central Alchemy?
- Atoms can’t be subdivided.
- A given compoud always has the same relative number of kinds of atoms.
food model of Dalton’s atom.
Different shaped fruit snacks.
When was Thomson Alive.
1856-1940
What did Thomson use to discover his findings?
A Cathole Ray Tube.
What did Thomson find when he used the Cathole Ray Tube? When did you discover this?
Proof there are subatomic particles. Evidence that electrons are negatively charged. 1897
What did Thomson discover about atoms? When did he discover this?
He discovered Isotopes. 1913.
Who’s ideas did he end.
2 of Dalton’s.
Candy model to Thomson’s idea?
Banana Pudding.
When was Rutherford Alive?
1871-1937
What experiement did Rutherford make, and when was it carried out?
The Gold Hill experiement, 1909.
What did Rutherford discover during the Gold Hill experiment?
The Nucleus, and that it is small, dense, and positive. Evidence on how atoms are mostly empty space.
Rutherford candy model.
Tottsie roll–imperfect.
What distinguishes a nuetral atom from an ion?
The number of electrons.
Where is the ion charge located in the isotope symbol?
The top right.
What subatomic particle has a positive charge?
Proton.
What subatomic particle has a negative charge?
electron.
What subatomic particle has a nuetral charge?
Nuetrons.
The whole number in each box of the periodic table is the atomic number of the element. What does the atomic number represent?
The number of protons.
Where is the atomic number located in the isotope symbol?
The number at the bottom of the element.
How is the mass number determined?
It is determined by adding the number of protons and neutrons.