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3rd/GCSE atom history & structure Flashcards | StudBud
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3rd/GCSE atom history & structure
3rd/GCSE atom history & structure
20 terms
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#chemistry #atomictheory #atomicstructure
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
What did Rutherford EXPECT to happen in the gold foil experiment?
All alpha particles to break apart
None of the other answers
All alpha particles deflected by fold foil
All alpha particles pass through gold foil
2
What is the center of the atom called?
The nuclide
The nucleus
The proton
The electron shell
3
In the Bohr model where are the electrons found?
shells
nucleus
nucleus and shells
centre
4
What is the smallest subatomic particle?
nucleus
Electron
Proton
Neutron
5
Why did MOST alpha particles pass through the gold foil?
Because the atom is mostly empty space
Because the atom is filled with protons
Because the atom is filled with neutrons
Because the alpha particles hit the nucleus
6
What is the maximum number of electrons in the 2nd shell?
1
8
no maximum
2
7
Who performed the gold leaf experiment?
Thomson
Dalton
Bohr
Rutherford
8
Opposite charges
Attract
Repel
Do not affect each other
Cause an explosion
9
The gold foil experiment involved shooting a beam of ____ particles at gold foil.
Negatively-charged beta particles
Positively-charged beta particles
Negatively-charged alpha particles
Positively-charged alpha particles
10
Why were SOME alpha particles deflected by the gold foil?
The atom is mostly empty space
They are deflected by the electron clouds
They hit the positively-charged nucleus
The gold foil is radioactive
11
What is a particle with a positive charge called?
Electron
Neutron
Proton
Atom
12
What are subatomic particles?
Atoms, ions, isotopes
Nucleus, alpha particle, electron
Molecules, compounds, atoms
Protons, neutrons, electrons
13
Which of these is NOT part of Dalton's atomic theory?
Different atoms had different mass
Atoms could not be split
Atoms are hard spheres
Atoms were mostly empty space
14
What ACTUALLY happened in the gold foil experiment?
Most alpha particles went through, some deflected
All alpha particles deflected
All alpha particles went through
Alpha particles disappeared
15
What is Thomson's model of the atom called?
The bowling ball model
The modern model
The gold foil model
The plum pudding model
16
What model of the atom did JJ Thomson suggest?
nuclear model
shell model
'plum pudding' model
solid model
17
What is the maximum number of electrons in the 1st shell?
no maximum
2
8
1
18
Two negative charges ...
Attract
Repel
Cause an explosion
Do not affect each other
19
What two particles are located in the nucleus of the atom?
Just protons
Electrons and protons
Electrons and neutrons
Protons and neutrons
20
If an atom were the size of a baseball stadium, how big would the nucleus be?
Size of classroom
Size of grain of rice
Size of house
Size of chair
