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Development of Atomic Theory
Development of Atomic Theory
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Development of atomic theory and revision of atomic number
Flashcards
11 cards
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Questions
11
Answers
1
Who discovered neutrons?
E Rutherford
J.Chadwick
N.Bohr
JJ Thomson
2
Which of these did E.Rutherford NOT discover?
Neutrons are in the nucleus
Electrons are separate from the nucleus
Nucleus is small
Nucleus is positive
3
Who proposed the 'plum pudding' model of an atom?
JJ Thomson
Dalton
Rutherford
Democritus
4
Thomson discovered the electron using a....
Electron Microscope
Light microscope
Cathode ray
Binoculars
5
Which answer represents the atomic number?
4
6
2
He
6
Who was the first person to theorise the atom?
Democritus
Aristotle
Dalton
MacMunnicus
7
Dalton proposed that atoms can be created or destroyed during chemical changes....
True
False
8
The atomic number represents the number of what?
Electrons
Neutrons
Protons
Atoms
9
How many protons does Iron consist of?
29.85
26
55.85
81.85
10
Who stated that "
atoms of a given element are identical"
?
J. Dalton
E. Rutherford
JJ Thomson
Heisenberg
11
In what year did Rutherford discover the existence of protons?
1800
1915
1922
1909
