8125058
Description
Quiz by Nathan Butler, updated more than 1 year ago
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Created by Nathan Butler
almost 8 years ago
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Question 1
Question
Which scientist cut up a piece of material until he discovered what then was thought to be the smallest particle an atom?
Answer
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Dalton
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Democritus
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Rutherford
Question 2
Question
Who discovered the later to be named electron?
Answer
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J.J Thomas
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Dalton
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Bohr
Question 3
Question
What particle did Rutherford shoot at a piece of thin gold foil during his experiment to confirm that an atom is mostly empty space?
Answer
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Beta particle
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Soot particle
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Alpha particle
Question 4
Question
What did Rutherford discover about the atom due to his experiment with firing particles at gold foil?
Answer
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The atom has a dense positivley charged nucleus in the center of the atom.
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The atom has electrons which orbit the nucleus in energy levels.
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Atoms are mostly empty space with negatively charged particles embedded.
Question 5
Question
What of the below evidence supported Bohrs hypothesis that electrons are located at specific energy levels.
Answer
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Atomic Spectra
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When compounds are formed
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Electrolysis of compounds
Question 6
Question
[blank_start]Dalton's[blank_end] Billiard Balls-
Conclusion- Atoms are [blank_start]solid spheres[blank_end]. Atoms are of the same element [blank_start]are identical[blank_end].
Evidence- When observing the formation of [blank_start]compounds[blank_end] and the atom rearrangement.
Answer
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Dalton's
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Bohrs
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Rutherfords
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Democritus
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solid spheres
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Hollow spheres
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small squares
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identifiable mass
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are identical
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vary slightly
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are different
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compounds
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ions
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molecules
Question 7
Question
When an electron [blank_start]absorbs energy[blank_end] it is [blank_start]excited[blank_end] to a higher energy level. However the electron is [blank_start]unstable[blank_end] in its [blank_start]excited position[blank_end] so in turn [blank_start]drops to[blank_end] any lower energy level. The electron [blank_start]emits energy[blank_end] in the process in the form of [blank_start]light[blank_end].
Answer
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absorbs energy
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steals energy
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light
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emits energy
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unstable
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excited position
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drops to
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excited
Question 8
Question
Which of the following terms is the definition of relative isotopic mass?
Answer
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Isotopic mass is the mass of an atom compared to 1/12 of a carbon-12 atom.
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Isotopic mass is the mass of an atom compared to a hydrogen-1 atom.
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Isotopic mass is the mass of an atom compared to 1/16 of a oxygen-16 atom.
Question 9
Question
Which of the followings are correct for the term isotope.
Answer
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Same amount of protons
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Different number of electrons
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Different mass number
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Different number of neutrons
Question 10
Question
Which of the following is the definition for relative atomic mass?
Answer
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The weighted average of all naturally occurring isotopes of an element.
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The weighted average of all isotopes and possible ions of an element.
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The weighted average of all possible ions of an element
Question 11
Question
What machine in the chemical industry is used to identify elements in a sample?
Answer
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Mass spectrometer
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Electrode
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Calorimeter
Question 12
Question
The peaks on a graph showing the elements found in a sample represent what?
Answer
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Abundance
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Relative isotopic mass
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Neutron number
Question 13
Question
What shape is an 's' orbital?
Answer
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Sphere
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Dumbell
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Oval
Question 14
Question
What shape is a 'p' orbital?
Answer
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Sphere
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Dumbell
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Oval
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