Atomic STructure
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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| proton | positive subatomic particle; mass 1= amu; location nucleus
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| neutron | neutral subatomic particle; mass = 1 amu; location nucleus
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| electron | negative subatomic particle; mass = 0 amu; location in the cloud
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| Atomic Number | identifies element; number of protons in nucleus
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| Mass Number | mass of nucleus of an isotope; always a whole number; protons + neutrons
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| Atomic Mass | weighted average of naturally occurring isotopes; decimal value on periodic table
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| isotopes | atoms of the same element with different numbers of neutrons
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| ions | charged atoms - too many or too few electrons
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| anion | a negative ion; extra electrons
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| cation | a positive ion; too few electrons
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| ground state | electrons in lowest energy state possible; on periodic table
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| excited state | electron that has absorbed energy and jumped to higher level
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| bright line spectrum | colored lines produced when excited state electrons emit energy as light to fall back to ground stated
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| gold foil experiment | proof that atoms are mostly empty space with a dense positive nucleus
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| electron configuration | how/ where electrons are likely to be found around a nucleus
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| wave mechanical model | electrons are in a cloud around nucleus with different amounts of energy
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| Bohr model | electrons orbit nucleus in specific paths
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| orbital | region of space where an electron might be found
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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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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:
mrsflower
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