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Technetium.
All atoms of Technetium have 43 protons in their nulceus (this is the meaning of atomic number). In addition, Technetium atoms may have any thing from 50 to 56 neutrons depending upon the isotope.
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∙ 15y ago
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∙ 14y agoTechnetium, symbol Tc, (chemically comparable with manganese)
- atom number 43
- mass number 99
- normally absent in nature,
- unstable element (t1/2= 50,000 year) by electron emission (max. 0,32 MeV)
Compareable to: Molybdenium atom number 42, mass number 99(!)
[from Wikipedia.nl, translated by me, JdQ:]
In 1937 technetium was discovered by Italian scientists Carlo Perrier and Emilio Segrè analysing a molybdenium sample sent to them by Ernest Lawrence. The sample was bombed in a cyclotron with deuteriumkernen (=neutron bombing) at Universiteit van Californië - Berkeley by which the isotoop 97Tc was created. Technetium was the first artificially produced element.
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∙ 13y agoIt is IODINE which is a member of the halogen family.
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∙ 15y agoTechnetium (Tc)
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∙ 14y agoRhodium (Rh)
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∙ 14y agoTechnetium, symbol TC.
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∙ 15y agoIodine
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The atomic number determines the what?
The number of protons.
What does the atomic number equal of an element?
The atomic number of an element equals the number of protons in the element.
What has atomic number 47?
Silver is a metal element. Atomic number of it is 47.
What is an element id?
An element "I.D." is an element's atomic number. An element's atomic number shows how many electrons are in an atom of that element. An element's atomic number also determins their position on the Periodic Table.
What number of protons in one atom of an element is that element's?
The number of protons in an atom of an element is equal to the number of electrons in that atom which is equal to that element's atomic number.
What element has the atomic number of 53?
The element that has an atomic number of 43 is Technetium. It was discovered in 1937 and its symbol is Tc.
What is the name of the element with the lowest atomic number?
Technetium - its atomic number is 43.
Which element has 43 protons in the nucleus?
Technetium (Tc) Atomic number = number of protons
What element has the automatic number 43?
The atom with atomic number 43 is Technetium. One thing should be known. If looking at a periodic table this element doesn't have an atomic weight. This is because this atom has no stable isotope present and therefore an atomic weight cannot be calculated.
What is the atomic weight of technetium?
The atomic number of technetium (Tc) is 43.The atomic weight of Tc is 98 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
What does Tc stand for in the periodic table?
Technetium is the chemical element with atomic number 43 and symbol Tc.
How many electron are in a atom?
43, as its atomic number is 43
The atomic number determines the what?
The number of protons.
What is the term for the value that indicates the number of protons for an atom of a given element?
The atomic number is the number of protons in an atom of an element.
What does the atomic number of an element tell you about the element?
Atomic number = Number of protons
What does an element's atomic number stand for?
Atomic number is the number of protons in the atomic nuclei of the atoms of an element.
