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WorksheetsAtomic model
Total questions: 10
Worksheet time: 5mins
The word atom comes from the Greek "atomos" which means?
Very tiny
Indivisible
Molecule
Ouch I jammed my toe
Which of the following was not a part of Dalton's theory of the atom?
All elements are composed of atom
Atoms of the same elemements have the same mass and atoms of different elements have different masses
Compounds contain atoms of more than one element
All atoms have the same number or protons, electrons, and neutrons
Which of the following best fits Thomson's model of the atom?
Homer Simpson
Chocolate cake
Plum Pudding
Can of Diet Pepsi
What discovery was accounted for in Rutherford's model of the atom?
A positively charged nucleus
Electrons
The northwest passage
Neutrons
The Bohr Model of the atom says that electrons:
Move at a very high velocity around the nucleus
Electrons exist at different energy levels in orbit around the nucleus
Electrons can move between energy levels when they gain or lose energy
All of the above are true about the Bohr model
Which of the Bohr’s postulates was incorrect?
Energy of electrons is quantized
Momentum of electrons is quantized
Electrons release energy when shifting from excited state to ground state
Electrons revolve around the nucleus in fixed circular orbits
When an electron shifts to an inner shell, it:
Absorbs photon
Emits a photon
Emits a positron
Absorbs a positron
Around 1911, Rutherford suggested a planetary model of atomic structure. Which of the following was not a proposition of this model?
Electrons revolve in circular orbits around the nucleus
Nucleus consists of protons and neutrons
Mass of atom is concentrated in the nucleus
Most of the volume in an atom is void
Which source is associated with a line emission spectrum?
Electric fire
Neon street sign
Red traffic light
Sun
The name of physicist who discovered the nucleus of atom was
Democritus
John Dalton
Ernest Rutherford
Vander Waals
