Vocabulary from chapter 4 of textbook
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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| Cathode Ray | Ray of radiation that originates from the cathode end of the tube.
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| Electron | negatively charged subatomic particle.
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| Nucleus | small dense and centrally located within the atom. Contains all the atom's positive charge and virtually all of its mass.
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| Proton | positively charged subatomic particle.
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| Neutron | neutrally charged subatomic particle.
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| Table O | illustrates the symbols, charges and masses of subatomic particles and nuclear emanations.
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| Atomic Number | The number of protons in the nucleus of an atom. Identifies the atom.
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| Isotope | Atoms with the same number of protons (atomic number) but different number of neutrons (mass number)
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| Mass Number | The sum of the protons and the neutrons in the nucleus of an atom.
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| AMU | Atomic Mass Unit - 1/12 the mass of a carbon-12 atom.
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| Atomic Mass | The weighted average mass of all naturally occurring isotopes of an element.
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| Nucleons | The subatomic particles found in the nucleus (protons and neutrons).
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| Nuclear Reactions | A reaction that involves a change in an atom's nucleus.
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| Radioactivity | A process occurring when a substance spontaneously emits radiation.
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| Radiation | The rays and/or particles emitted by a radioactive material.
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| Radioactive Decay | Occurs when unstable nuclei lose energy by emitting radiation in a spontaneous process.
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| Alpha Radiation | Radiation deflected towards a negative plate.
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| Alpha Particle | A particle with 2 protons and 2 neutrons.
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| Nuclear Equation | illustrates the mass number and atomic number for each particle involved.
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| Beta Radiation | Radiation deflected towards a positive plate.
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| Beta Particle | A particle with negligible mass and a negative charge.
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| Gamma Ray | High energy radiation that possess no mass or charge.
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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:
Silvs216
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