Unit 2 chem words
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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| Excited State | a state in which an atom has more energy than it does at its ground state
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| Ground State | the lowest energy state of a quantized system
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| Ionization Energy | the energy required to remove an electron from an atom or ion
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| Electronegativity | the ability of an atom in a chemical compound to attract electrons
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| Electromagnetic Spectrum | all of the frequencies or wavelengths of electromagnetic radiation
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| Avogadro's Number | 6.02x1023 the number of atoms or molecules in 1 mole
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| Electron Affinity | the energy change when an electron is acquired by a neutral atom
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| Mole | the SI base unit to measure the amount of the substance
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| Photon | a unit or quantum of light; particle of electromagnetic radiation
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| Orbital | a region in an atom where there is a high probability of finding electrons
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| Electron Configuration | the arrangement of electrons in an atom
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| Pauli Exclusion Principle | the principle that states that two particles of a certain class cannot be in exactly the same energy state
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| Hund's Rule | singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin; the number of unpaired electrons is the maximum possible and these unpaired electrons bonds between atoms
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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.
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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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