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Not quite. As of July 2009, there are 117 elements in the Periodic Table. The person who told you there were 109 is probably basing that number on what they were taught which would have been correct some time in the 90s and they, perhaps, just haven't updated their understanding. 117 is still undiscovered although 118 has been found. 122 is claimed to have been discovered but is still unconfirmed due to its extreme instability. Try Wikipedia for more information: http://en.wikipedia.org/wiki/Discoveries_of_the_chemical_elements
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∙ 14y ago
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If element number 109 is produced will it be a transition element?
Element 109 has been produced a lot since it's discovery and, yes, it is a transition metal.
You have told is correct are you had told is correct?
The correct form is "You have told," which is the present perfect tense indicating that the action of telling occurred at an unspecified time in the past with a connection to the present. "Are you had told" is grammatically incorrect.
What is the atomic mass of silver-109?
Silver is a metal element. Atomic mass of it is 109.
How many electrons are in the element meitnerium?
109
If element number 109 is produced will it be a transition element explain?
Element 109 has been discovered and repeatedly generated. It has been named Meitnerium (Mt) and is part of the Cobalt series (which is in the transition metals).
What are the common isotopes of this element?
You have not told us what element "this" element is.
What element has the mass number of 109?
Silver (Ag) it is...
How many neutrons are in meitnerium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of meitnerium is 109. Each isotope of an element has a different number of neutrons.
What is Mt in periodic table?
Meitnerium, element number 109 of the table of elements.
Is meitnerium a flower?
Meitnerium is an artificial chemical element, atomic number 109.
How many protons and neutrons in meitnerium?
Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of meitnerium is 109. Each isotope of an element has a different number of neutrons. Meitnerium has 109 protons.
When did the atomic number first appear on the periodic table?
The first atomic number appeared on the periodic table in August 1982. The first atom of the element meitnerium had the atomic number 109. The isotope of element 109 has an atomic mass of 266.
