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The Atom
The Atom
22 terms
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Review of the Atom and its history
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
This model of the atom represents which scientist's idea of the atom
Thomson
Dalton
Bohr
Rutherford
2
What element is represented by the model?
carbon
argon
calcium
magnesium
3
How many neutrons would an atom with 15 protons and 15 electrons and a mass number of 31 have?
61
15
16
46
4
What particle was discovered with the cathode ray tube experiment?
Electron
Quark
Proton
Neutron
5
Which scientist's discoveries lead to the use of the following model
Dalton
Bohr
Rutherford
Millikin
6
What is the mass number of the following atom
64
58
35
29
7
How are the electrons arranged within the electron cloud?
Only around the outside of the cloud
Within orbitals in energy levels
Randomly dispersed evenly around nucleus
In orbits like planets around the sun
8
Why do different elements give off different colors during a flame test?
Its the color of their solutions
electrons have particle and wave nature
e- have unique arrangement in energy levels and orbitals
9
The following model of the atom was introduced by which of the following scientist
Rutherford
Thomson
Dalton
Bohr
10
What experiment is JJ Thomson known for?
Cathode Ray tube experiment
Oil Drop experiment
Gold foil experiment
Spectral Line experiment
11
The Gold foil experiment was conducted by which of the following scientist?
Dalton
Thomson
Rutherford
Bohr
12
Whose model of the atom is the basis for chemistry?
Dalton
Rutherford
Bohr
Thomson
13
Atoms of the same element with varying number of neutrons
Isotope
Compounds
Ion
14
The Gold foil experiment showed that most of the atom is made up of what?
protons
the nucleus
empty space
electrons
15
This is a group of protons and neutrons in the center of all atoms
nucleus
electron cloud
proton cloud
16
How does the mass of a proton compare to the mass of a neutron and electron?
Proton is more than both
Same as neutron (1amu) and electron much smaller
Same as electron and neutron much larger
Proton is the smallest of the 3
17
What discovery was made with the gold foil experiment?
The wave nature of light
Positively charged dense nucleus
Electrons are in energy levels
Negatively charged electrons in cloud
18
This is an atom that has lost or gained electrons
Neutron
Ion
Isotope
19
Which is the correct order in which the models were discovered?
Dalton, Thomson, Rutherford, Bohr
Dalton, Rutherford, Bohr, Thomson
Thomson, Dalton, Rutherford, Bohr
Bohr, Thomson, Dalton, Rutherford
20
What element is represented by the model?
Potassium
Yttrium
Silver
Calcium
21
This is the basic building block of all matter.
Electrons
Nucleus
Compounds
Atom
22
Which of the following is the electron configuration for Chromium (Cr)
1s22s22p63s23p5
1s22s22p63s23p64s23d104p3
1s22s22p63s23p64s23d4
1s22s22p63s1
