The Nuclear Atom
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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| J.J. Thomson used a cathode-ray tube to discover the [...] | J.J. Thomson used a cathode-ray tube to discover the electron
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| Physicist Ernest [...] set out to test Thomson's plum pudding hypothesis about the atom. | Physicist Ernest Rutherford set out to test Thomson's plum pudding hypothesis about the atom.
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| Rutherford bombarded a piece of [...] foil with a beam of radiation containing alpha particles. | Rutherford bombarded a piece of gold foil with a beam of radiation containing alpha particles.
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| In Rutherford's experiment, most of the alpha particles passed through he gold foil, but some of the particles were [...]. | In Rutherford' experiment, most of the alpha particles passed through he gold foil, but some of the particles were deflected way off course.
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| Rutherford correctly concluded that the positive charge of the atom was [...] somewhere inside the atom, and not spread out as Thomson had suggested. | Rutherford correctly concluded that the positive charge of the atom was densely concentrated somewhere inside the atom, and not spread out as Thomson had suggested.
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| Rutherford discovered that atoms have a [...] | Rutherford discovered that atoms have a nucleus
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| The positively charged particles of an atom are called [...]. | The positively charged particles of an atom are called protons.
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| The negatively charged particles of an atom are called [...]. | The negatively charged particles of an atom are called electrons.
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| A proton has a charge of [...] | A proton has a charge of +1
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| An electron has a charge of [...] | An electron has a charge of -1
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| 1 proton balances out [...] electron. | 1 proton balances out 1 electron.
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| James [...] presented evidence that the nucleus was made up of protons and neutrons. | James Chadwick presented evidence that the nucleus was made up of protons and neutrons.
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| neutrons have a charge of [...] | neutrons have a charge of 0
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| The neutrally charged particles of an atom are called [...]. | The neutrally charged particles of an atom are called neutrons.
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| The un-charged particles of an atom are called [...]. | The un-charged particles of an atom are called neutrons.
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| There are [...] sub-atomic particles. | There are 3 sub-atomic particles.
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| The sub-atomic particles are [...], neutrons, and electrons. | The sub-atomic particles are protons, neutrons, and electrons.
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| protons and electrons have exactly [...] charges. | protons and electrons have exactly opposite charges.
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| An electrically neutral atom will have the same number of protons and [...]. | An electrically neutral atom will have the same number of protons and electrons.
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| Almost all the mass of an atom is in its [...]. | Almost all the mass of an atom is in its nucleus.
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| electrons have almost no [...] | electrons have almost no mass
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| Neutrons have about the same mass as [...]. | Neutrons have about the same mass as protons.
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| The identity and properties of an element are determined by the number of [...] in each atom. | The identity and properties of an element are determined by the number of protons in each atom.
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| The sub-atomic particles are protons, [...], and electrons. | The sub-atomic particles are protons, neutrons, and electrons.
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| The sub-atomic particles are protons, neutrons, and [...]. | The sub-atomic particles are protons, neutrons, and electrons.
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| Who conducted the gold-foil experiment? | Rutherford
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
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Created by:
mr.shapard
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