Atoms and Periodic Table
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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| The smallest particle into which an element can be divided. | Atom
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| Negatively charged particles of an atom | Electrons
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| The area of an element with NO CHARGE | Neutron
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| The TWO particle parts that are in the nucleus of an atom | Neutrons and protons
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| The center of the atom | Nucleus
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| Electrons are likely to be found in this area | Electron clouds - outside the nucleus
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| The positively charged particle of an atom | Protons
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| The three main parts of an atom | Protons, neutrons, electrons
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| The number of protons in an element identifes this | Atomic number
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| An atom that has the same number of protons but a DIFFERENT number of neutrons as other atoms of the same element. | Isotope
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| The total number of protons and neutrons in an atom | Mass number
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| Ancient Greek who said the atom was the smallest bit of matter - the 'uncuttable' piece | Democritus
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| English scientist in 1700's who said atoms could not be created, divided, or destroyed, and atoms could join together to form new substances | John Dalton
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| This English scientist discovered electrons in 1897 with his cathode-ray tube experiment | J.J. Thomson
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| Scientist, in 1909 who discovered the nucleus of atoms with his 'shooting range' experiment. | Ernest Rutherford
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| Danish scientist, in 1913, said electrons moved around the nucleus in fixed paths. | Niels Bohr
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| The vertical columns of the periodic table of element | Groups (or families)
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| The horizontal rows across the periodic table of elements | Periods
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| Group I | Alkali Metals
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| Group 18 | Noble Gases
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| Groups 3-12 | Transition Metals
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| Group 2 | Alkaline-Earth Metals
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| Group 13 | Boron Group
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| Group 14 | Carbon Group
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| Group 15 | Nitrogen Group
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| Group 16 | Oxygen Group
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| Group 17 | Halogens
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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:
nmerson
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