nuclear reaciotn

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i don't know the ANS for #2

Update:

回momo :

equation 3 既right hand side 既neutron 數目係咪有d問題 ?

1 Answer

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  • momo
    Lv 6
    1 decade ago
    Favorite Answer

    The question 2 answer is B (2 only)

    For equation 1,

    Boron 10 (with 5 neutrons and 5 proton) + 1 neutron = 6 neutrons + 5 proton

    alpha particle has 2 neutrons + 2 proton

    Lithium 6 has 3 neutrons + 3 protons

    Left hand side has 6 neutrons + 5 protons

    Right hand side has 5 neutrons + 5 protons

    The equation on both sides are unbalanced.

    For equation 2,

    Bi 210 has 127 neutrons + 83 protons

    Po 210 has 126 neutrons + 84 protons

    beta particle = 1 electron

    1 electron + 1proton = 1 neutron

    Left hand side 127 neutrons + 83 protons

    Right hand side 127 neutrons + 83 protons

    The equation on both sides are balanced

    For equation 3,

    Nitrogen 14 has 7 neutrons + 7 protons

    Oxygen 17 has 9 neutrons + 8 protons

    alpha particle has 2 neutrons + 2 protons

    Left hand side has 9 neutrons + 9 neutrons

    Right hand side has 10 neutrons + 9 protons

    The equation on both sides are unbalanced

    The answer is B (2 only)

    2008-12-31 19:11:20 補充:

    Sorry for counting error

    For equation 3,

    The right hand side has 9 neutrons + 9 protons.

    The equation on both sides are balanced.

    The answer is D ( 2 and 3 only)

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