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- 1. Multiple Choice
What subatomic particles make up the nucleus of an atom?
Electron and Proton
Electron and Neutron
Proton and Neutron
Proton only
- 2. Multiple Choice
The atomic theory states that matter is made up of what?
Atom
Corpucles
Earth and air
Elements
- 3. Multiple Choice
If an atom has more electrons than protons then it has a what?
Neutral charge
Negative charge
No charge
Positive charge
- 4. Multiple Choice
What do you call an atom which has the same number of protons and electrons?
Ion
Isotope
Molecule
Neutral atom
- 5. Multiple Choice
Democritus coined the term "atomos" which means?
Divisible
Invincible
Invisible
Uncuttable
- 6. Multiple Choice
Which of the following is TRUE about an atom?
All matter is made up of it.
It is the smallest particle of an element.
It is made up of protons, electrons, and neutrons.
All of the above.
- 7. Multiple Choice
Who discovered electron?
John Dalton
Ernest Rutherford
James Chadwick
J.J. Thompson
- 8. Multiple Choice
Who discovered neutron?
John Dalton
Ernest Rutherford
James Chadwick
J.J. Thompson
- 9. Multiple Choice
Which of the following models of an atom shows electrons orbiting the nucleus?
Nuclear Model
Planetary Model
Plum Pudding Model
Quantum Mechanical Model
- 10. Multiple Choice
The discovery of isotopes contradicted what postulate of Dalton's theory?
All atoms of a given element are alike.
All matter are made up of atoms.
Atoms may break apart into separate atoms, but the atoms themselves are unchanged.
When atoms form molecules, they unite in small whole numbered ratios.
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