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    Mercury electrons

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    1. Mercury-205 has how many protons, neutrons, electrons, and electrons in the 1st quantum shell?

    2. In the compound BCl3 which is the more electronegative element?

    3. Which has the higher boiling point?
    8-carbon alkane that is a straight chain or an 8-carbon alkane that is branched?

    4. Which has the higher octane rating?
    An 9=carbon alkane that is a straight chain or an 8-carbon alkane that is branched?

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    Solution Preview

    Mercury electrons
    1. Mercury-205 has how many protons, neutrons, electrons, and electrons in the 1st quantum shell?

    For Mercury-205:
    Atomic number (A) = 80
    Mass number (Z) = 205

    Number of protons = 80 (number of proton is same as the atomic number)
    Number of neutrons = 125 (# of neutron = A - Z = 205 - 80 = 125)
    Total number of electrons = 80 (same as number of proton for neutral species)

    Note: Only electrons occupy quantum shells. Both protons and neutrons are confined in the nucleus.
    When only the first quantum shell is considered, mercury has 2 electrons. Because, the 1st quantum shell has only 1 ...

    Solution Summary

    Mercury electrons, protons, and neutrons are examined.

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