Models of the Atom | Subatomic Particles | States of an Atom | Average Atomic Mass | Electron Configuration/Sublevel Notation |
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What is the Bohr Model?
In this model, the atom is composed of a positive proton and a neutron, surrounded by electrons in a specific orbit.
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What is an electron?
A subatomic Particle with a negative charge and is lighter in mass than the other two subatomic particles.
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What is absorbing energy?
When an electron jumps from the ground state to an excited state, it is said to _____________ _____________.
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What is an isotope?
Atoms of an element that contain the same number of protons but a different number of neutrons.
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100
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What is the Wave Mechanical Model?
In this model, electrons are found in a wavelike orbital at specific energy levels - probably location of electrons.
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What is an a neutron?
A subatomic particle with no charge.
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What is an excited state?
An electron is in a/an _________________ state when it it jumps from n=1 to n=2.
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(%abundance x mass of 1st isotope) + (%abundance x mass of 2nd isotope) +...
When finding an average atomic mass, one must....
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200
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What is the Rutherford Model?
In this model, through the Gold Foil Experiment, it was found that there is a positive center with scattered electrons.
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What is a proton and a neutron?
These two subatomic particles are similar in mass but have different charges.
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What is a ground state?
An electron is in a/an _________________ state when it it falls from n=5 to n=4.
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What is Carbon?
C -14, C-13, and C-12 are all isotopes of ___________________.
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300
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What is the Plum Pudding Model?
In this model, the atom has a positive charge with a few random electrons.
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What is mass?
By adding the protons and neutrons of an atom, you find the value of its _________________.
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Answers will vary.
The energy of an electron is emitted when it moves from ____________ to _______________. (Give an example)
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What is a core electron?
The electrons found closest to the nucleus.
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400
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What is the Wave mechanical Model?
In this model, there are 4 type of specific orbitals (s, p, d, f)
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What is an atomic number?
The number of protons is similar to an atom's ______________ ________________.
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What is a valence electron?
The outermost electrons in an atom.
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Answers will vary.
Magnesium occurs in nature in three isotopic forms:
Mg - 24 (78.70%), Mg-26 (11.17% abundance) and Mg - 25 (10.13 %). Set up the numeral calculation. |
500
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