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As of July 2009, there are 117 elements on the Periodic Table.
As of November 2009, there are 126 elements on the Periodic Table.
3 are recently discovered and don't have much data, unless my previous number wer counted wrong. Hope this helps!
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∙ 14y ago
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Why is the number of elements on the periodic table unfixed?
If your talking about the atomic mass number it is because the amount of neutrons can very. If you are talking about the actual amount of total elements on the periodic table it is because we keep discovering new things.
Elements on the periodic table of elements?
total no of elements in periodic table is 112.Some of which are still unnamed. Elements on the periodic table is classifies into metals, non-metals, semiconductors, and elements that are radioactive. Elements are arranged in increasing order of their atomic number. In a periodic table on the left are the metals, on the right are all non-metals and in the middle are the transition metals.
How many elements are found in the periodic table of elements?
There are a total of 118 elements known to exist on the periodic table.
What are the lanthanides placed on the perioic table?
Lanthanoids are placed down in the periodic table.They contain elements with atomic number 57 to 71.There are total 15 elements in lanthanoids group.
How are elements contained within the group on the periodic table?
They have the same number of valence electrons (total of s and p electrons)
How does the number of main elements found in living things compare to the total number of elements in the periodic table?
It is about half
Why is the number of elements on the periodic table unfixed?
If your talking about the atomic mass number it is because the amount of neutrons can very. If you are talking about the actual amount of total elements on the periodic table it is because we keep discovering new things.
How many groups does the periodic table contain?
There are a total of 18 groups on The Periodic Table of Elements.
How many periods does Periodic table contain?
There are a total of 18 groups on The Periodic Table of Elements.
How many elements are listed on the periodic table that has symbols for them?
All the elements listed on periodic table has symbols for them.There are total 118 elements in periodic table.
Elements on the periodic table of elements?
total no of elements in periodic table is 112.Some of which are still unnamed. Elements on the periodic table is classifies into metals, non-metals, semiconductors, and elements that are radioactive. Elements are arranged in increasing order of their atomic number. In a periodic table on the left are the metals, on the right are all non-metals and in the middle are the transition metals.
How do you fine the mass number?
This is based on elements. You can use a periodic table. Mass number is equals to total of neutrons and protons.
How many elements are found in the periodic table of elements?
There are a total of 118 elements known to exist on the periodic table.
What elements contain the same total number of unpaired electrons as potassium?
Everything in the group 1 of periodic table
What are the lanthanides placed on the perioic table?
Lanthanoids are placed down in the periodic table.They contain elements with atomic number 57 to 71.There are total 15 elements in lanthanoids group.
How are elements contained within the group on the periodic table?
They have the same number of valence electrons (total of s and p electrons)
What information on the periodic table does the period number help you with?
Period number describes the total number of shells. There are 7 periods in periodic table.
