Atoms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Atom | The smallest particle of an element that retains its identity in a chemical reaction.
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| Atomic Mass | The weighted average mass of the atoms in a natural occurring sample of an element.
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| Atomic Mass Unit (AMU) | One twelve of a carbon-12 atom.
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| Atomic Number | The number of protons in the nucleus of an atom of that element.
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| Cathode Ray | A glowing beam that traveled from the Cathode disk to the Anode disk.
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| Electrons | Negatively charged subatomic particles.
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| Group | The vertical columns of the periodic table.
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| Isotopes | Atoms that have the same number of protons but different number of neutrons.
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| Mass Number | The total number of protons and neutrons in an atom.
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| Neutron | Subatomic particles with no charge but with a mass nearly equal of that of a proton.
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| Nucleus | The tiny central core of an atom and is composed of protons and neutrons.
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| Period | The horizantal rows of the periodic table.
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| Periodic Table | An arrangement of elements in which the elements are seperated into groups based on a set of repeating properties.
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| Proton | Positively charged subatomic particals.
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| Daltons Atomic Theory 1 | 1. All elements are composed of tiny invisible particles called atoms.
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| Daltons Atomic Theory 2 | 2. Atoms of the same element are identicle. The atoms of any one element are different from those of any other element.
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| Daltons Atomic Theory 3 | 3. Atoms of different elements can phisically mix together or can chemically combine in simple whole-number ratios to form compounds.
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| Daltons Atomic Theory 4 | 4. Chemical reactions occur when atoms are seperated, joined, or rearranged. Atoms of one element, however never changed into atoms of another element as a result of chemical reaction.
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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:
Kako
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