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What properties did Mendeleev position the elements on the table?
Mendeleev created his Periodic Table at the time when presence of sub-atomic particles like electrons, protons and neutrons were not discovered.So, the term atomic number was not known till now. So , he positioned the elements in increasing order of atomic mass because Atomic Mass of many elements discovered till then were known.
What property did mendeleev position the elements on the periodic table?
Mendeleev created his Periodic Table at the time when presence of sub-atomic particles like electrons, protons and neutrons were not discovered.So, the term atomic number was not known till now. So , he positioned the elements in increasing order of atomic mass because Atomic Mass of many elements discovered till then were known.
What property did mendeleev use to position the elements on the pedriodic table?
Mendeleev created his periodic table at the time when presence of sub-atomic particles like electrons, protons and neutrons were not discovered.So, the term atomic number was not known till now. So , he positioned the elements in increasing order of atomic mass because atomic mass of many elements discovered till then were known.
What are the total number of elements discovered till date?
As of now, there are 118 known elements on the periodic table. These elements range from hydrogen (element 1) to oganesson (element 118).
How many elements are discovered till 2010?
118 (all elements from #1 to #118).
What are monoisotopic elements?
Mono isotopic elements are stable isotope of an element.From 80 isotopic elements there are 26 radioactive elements discovered up till now.These mono isotopic may or may not be radioactive if they are radioactive they have halve lives.
What is the isotope iodine 75?
There is no such isotope (75) known. Iodine (atom number 53, average atomic mass 127) has 53 protons and 70 up till 82 neutrons. The lowest known isotope number therefor is 123.
Bought something on your site on Friday 4th 2009 and till today i did not get the tracking number?
What? Get till the tracking number? Jeez! Why would you get till the tracking number anymore??
Where are all of the elements arranged?
All the elements discovered till now are properly arranged on the periodic table.
Who shot atomic bombs over nazi concentration camps?
Nobody. Atomic bombs were not available, even for testing, till the war in Europe was over.
What has the author Till Darnhofer written?
Till Darnhofer has written: 'Meteorological elements and their observation' -- subject(s): Meteorology, Observations
What is the role of gold in human body?
Gold is biologically inert and serves no function.
