2. (5.C) Which of the following statements is true about the trend for ionic radii?
a. When electrons are lost, forming positive ions, the ionic radius is larger than its
corresponding neutral atom
b. When electrons are lost forming Eositive ions, the ionic radius is smaller than its
corresponding neutral atom.
c. When electrons are gained forming positive ions, the ionic radius is larger than its
corresponding neutral atom
d. When electrons are gained forming positive ions, the ionic radius is smaller than its
corresponding neutral atom.
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Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
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Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
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The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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2. (5.C) Which of the following statements is true about the trend for ionic radii?
a. When electro...
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