Question
In: Chemistry
An imaginary element, "X" has an atomic number of 43 and a massnumber of 85.00201....
An imaginary element, "X" has an atomic number of 43 and a mass number of 85.00201. How many protons does a neutral atom of this element contain?
Solutions
Expert Solution
In a neutral atom, number of protons is equal to its atomic number.
So, the element with the atomic number 43 is technitium. Therefore, the number of protons in Tc is 43.
queen_honey_blossom answered 2 years agoRelated Solutions
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of its isotopes, 99Tc, is used in medicine for diagnostic imaging.
The isotope is usually obtained in the form of the pertechnetate
anion, TcO4-, but its use sometimes requires the technetium to be
in a lower oxidation state. Reduction can be carried out using Sn2+
in an acidic solution. The skeleton equation is TcO4- + Sn2+ → Tc4+
+ Sn4+ (acidic solution) Balance the equation by the ion–electron
method.
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