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Sarah
Sarah asked in Science & MathematicsChemistry · 1 decade ago

Please help chemistry question about isotopes!?

Atoms of a certain isotope have 73 neutrons and a mass number of 123

a. what is the atomic number?

b. how many electrons are there?

c. what is the name of the element?

d. what would the charge be?

Please help me i am so confused

2 Answers

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  • Michael
    Lv 4
    1 decade ago
    Favorite Answer

    a) atomic number= 123-73

    atomic number= 50

    b) atomic #, electrons, and protons have all the same value... therefore, there are 50 electrons.

    c) atomic number is the number that the element is on the PT... in this case, the AM is 50, which is Sn, or Tin.

    d) it has a negative charge... all elements towards the right are negatively charged, vice versa to the right.

  • siemens
    Lv 4
    5 years ago

    Atomic Number 73

    Source(s): https://shrinke.im/a8QFw
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