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The standardized atomic weight of technetium is [98] amu.

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โˆ™ 2015-05-10 17:02:52
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Q: Why is the atomic mass of technetium usually in brackets?
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On the technetium periodic table why is its relative atomic mass usually in brackets?

Because its a synthetic element. The number that appears in brackets is the most stable isotope of technetium.


In the periodic table why is the relative atomic mass of technetium usually in brackets?

Because its a Synthetic Element!!!!!!!!


Why is technetiums relative mass usually found in brackets on the period table?

why is the atomic mass of technitium usually in brackets?


In the peridoic table why is technetium atomic mass number usually in brackets?

Probably because technetium does not occur naturally; all its isotopes are radioactive with short half-lives compared with naturally occurring radioactive elements such as uranium.


What is the atomic mass of technetium?

The standardized atomic weight of technetium is [98].


What is the mass of technetium?

I assume you mean the atomic mass. Its atomic mass is 98.91g/mol


Why is technetiums relative atomic mass usually found in brackets on the period table?

because it is an isotope???


What is the atomic number and mass number for technetium?

43 97.9072


An element with 43 electrons an 99 atomic mass?

Technetium


Technetium in brackets?

Any time you see the atomic mass of an element in brackets on the periodic chart, that number represents the mass number of the longest-lived or best-known isotope of that element. In other words there is no stable isotope, i.e. all forms of it are radioactive.


Why does technetium have its relative atomic mass in brackets?

The brackets are used for isotopic elements--those with variable numbers of neutrons. The atomic weight of the most stable isotope is the one in brackets. You know, this is a terrible way to be getting your chemistry coursework done. Here you go: www.lenntech.com/periodic-chart-elements/tc-en.htm There you go.


What is the lightest men made element?

Technetium which has an atomic mass of 98.

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