General Science (Structure of Atom)
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1) What is the mass of an electron in atomic mass units?
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2) What is the charge of a quark?
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3) Who proposed the nuclear model of the atom?
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4) Which subatomic particle is responsible for chemical reactions?
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5) What is the atomic symbol for helium?
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6) What is the mass of an atomic nucleus?
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7) What is the charge of a neutron?
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8) Who proposed the wave mechanical model of the atom?
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9) Which subatomic particle has the least mass?
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10) What happens to an atom if it loses an electron?
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11) Who proposed the plum pudding model of the atom?
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12) Which subatomic particle is moving in the electron cloud?
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13) What is the atomic mass of an element?
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14) What is the mass of a neutron?
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15) What is the charge of a proton?
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16) Who proposed the quantum mechanical model of the atom?
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17) Which subatomic particle is not found in the nucleus of an atom?
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18) What happens to an atom if it gains an electron?
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19) Who proposed the idea of the electron cloud?
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20) Which subatomic particle has a negative charge?
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21) What is the mass number of an element?
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22) What is the mass of a proton?
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23) What is the charge of an electron?
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24) Who proposed the planetary model of the atom?
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25) Which subatomic particle is found in the nucleus of an atom?
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26) What is the atomic number of an element?
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27) What is the mass of an electron?
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28) Which subatomic particle has a positive charge?
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29) Who discovered the neutron?
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30) What is an atom?
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