ch.2
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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| atomic number | the number of protons in the nucleus of an atom of an element
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| niels bohr | Danish physicist who studied atomic structure and radiations
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| dalton's atomic model | an observer of weather and discoverer of color blindness among other things, came up with his atomic theory
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| democritus | the idea that matter is made up of fundamental particles called atoms.
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| electrons | A stable subatomic particle in the lepton family
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| mass number | the integer nearest in value to the atomic weight of an atom and equal to the number of nucleons in the nucleus of the atom
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| dalton | British chemist whose pioneer work on the properties of gases led to his formulation of the atomic theory. He also studied his own condition of colorblindness.
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| isotope | any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights
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| mass spectrometer | a device for identifying the kinds of particles present in a given substance
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| nucleus | a central part about which other parts are grouped or gathered
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| amu | atomic mass unit
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| protons | A stable, positively charged subatomic
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| neutron | an elementary particle having no charge
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| rutherford | Scottish physician and chemist: discoverer of nitrogen.
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| theory | non-technical contexts to mean an untested idea or opinion
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| law of definite proportions | law stating that every pure substance always contains the same elements combined in the same proportions by weight
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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:
romdog
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