Chapter Three
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Atom | the smallest component of an element
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| Plum-pudding Model | The plum pudding model of the atom was proposed by J. J. Thomson
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| Gold-Foil Experiment | Performed by Rutherford. Discovered that the Atom is mostly made of empty space and is positively charged
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| Orbitals | Where Electrons are located
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| Nucleus | Cotains the atoms Protons (+) and neutrons, mostly empty space.
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| Proton | is one amu, positively charged
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| Electron | Is Negatively charged, has a very small mass.
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| Mass Number | The sum of the number of Protons and nuetrons of an atoms nucleus
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| Atomic Number | representing the relative position of an element in the periodic table, is equal to the number of protons and electrons in the atom
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| Ion | a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
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| Isotope | one of two or more atoms with the same atomic number but with different numbers of neutrons
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| Atomic Mass | the mass of an atom of a chemical element expressed in atomic mass units
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| Valence Electrons | In chemistry, valence electrons are the outermost electrons of an atom,
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| Octet | when an orbital has 8 electrons in it, it is called dan octet
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| Excited State | Excitation is an elevation in energy level above an arbitrary baseline energy state
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| Ionization Energy | The amount of energy needed to remove an electron from a given kind of atom
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| Electron Affinity | The Electron affinity of a molecule or atom is the energy change when an electron is added to the neutral species to form a negative ion.
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| Electronegativity | the tendency of an atom or radical to attract electrons in the formation of an ionic bond
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Michaela.Kinney
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