Science Atomic Theory Flashcards
1
Q
What date is Democritus
A
440 BCE
2
Q
When was JJ Thomson
A
1897
3
Q
When was Chadwick
A
1932
4
Q
When was Dalton
A
Late 1700’s but he proposed the theory in 1803
5
Q
When was Rutherford
A
1909
6
Q
When was Bohr
A
1913
7
Q
Who pounded up materials in his pestle and mortar and called them “ATOMOS”
A
Democritus
8
Q
first to have the idea of “an atom” being the smallest particle of all matter
A
Democritus
9
Q
Who was a Greek philosopher
A
Democritus
10
Q
translates the Greek word “atomos” into atoms
A
Dalton
11
Q
Who proposed the atomic theory
A
Dalton
12
Q
stated that all substances are made of atoms
A
Dalton
13
Q
stated that atoms cannot be divided, created or destroyed
A
Dalton
14
Q
Who stated that atoms of the same element are exactly alike and atoms of different elements are different
A
Dalton
15
Q
Who used the plum pudding model
A
JJ THOMSON
