0
What else can I help you with?
Why was mendeleev unable to make any predictions about the noble gas elements?
The reason that Mendeleev didn't make any predictions about the gases was that these gases were not even discovered yet, therefore it was impossible for Mendeleev to make predictions.----Dmitri Mendeleev made his predictions on what would fill the gaps on his far from perfect periodic table. He predicted their sizes, weights, appearances, etc.I think the reason he didn't make predictions is because noble gases are not visible, and weightless.-------------------------------Mendeleev couldn't predict the noble gases' properties because their existence wasn't known, as implied above.Argon, a noble gas, was noticed twenty-five years later by John William Strutt and Sir William Ramsey (the names are not really important).It doesn't matter that the elements weren't discovered. That's the whole point of arranging the elements. To PREDICT the properties of the missing/unknown ones.
When did William Ramsey discover the noble gases?
In mid-1894, Sir William Ramsay worked in conjunction with John William Strutt, Lord Rayleigh, on research which led to the discovery of Argon. They announced the discovery at the meeting of the British Association in August 1894, and in 1904 were awarded Nobel Prizes for the discovery. According to his Nobel Committee biography, Ramsay went on to discover Helium in 1895; and in 1898 he found Neon, Krypton and Xenon.
Did J.J. Thomson discover isotopes?
No, J.J. Thomson did not discover isotopes. Isotopes were discovered by Frederick Soddy and John William Strutt in the early 20th century. J.J. Thomson is known for his discovery of the electron.
How gases were discovered?
It was discovered in 1894 and it was Argon.In 1785 Henry Cavendish, an English chemist and physicist, found that air contains a small proportion (slightly less than 1 percent) of a substance that is chemically less active than nitrogen. A century later Lord Rayleigh, an English physicist, isolated from the air a gas that he thought was pure nitrogen, but he found that it was denser than nitrogen that had been prepared by liberating it from its compounds. He reasoned that his aerial nitrogen must contain a small amount of a denser gas. In 1894, Sir William Ramsay, a Scottish chemist, collaborated with Rayleigh in isolating this gas, which proved to be a new element---argon.for more information: "http://www.britannica.com/EBchecked/topic/416955/noble-gas"
Who invented seismology?
Earth quakes habeen around since before recorded history so to find the name of the first person on Earth to have understood that the ground was shaking would be a daunting task to say the least. ^^ Its obviously understood that Earthquakes have been noticed by people for hundreds of years, but the first person to do any real scientific investigation on Earthquakes was a man by the name Ernie Quaker. Ernie also named Earth "Quakes" hence his last name.
Who discovered aragon?
Argon is an element with the symbol Ar and atomic number of 18. It was discovered by William Ramsay and John William Strutt.
When was Faye Strutt born?
Faye Strutt was born in 1947.
When was Clive Strutt born?
Clive Strutt was born in 1942.
When did Elizabeth Strutt die?
Elizabeth Strutt died in 1867.
When was Elizabeth Strutt born?
Elizabeth Strutt was born in 1782.
When did Nick Strutt die?
Nick Strutt died in 2009.
When was Nick Strutt born?
Nick Strutt was born in 1946.
When was Jedediah Strutt born?
Jedediah Strutt was born in 1726.
When was the UK company Strutt and Parker founded?
Strutt and Parker, a UK property partnership was founded in 1885 by Edward Strutt and Charles Parker. Today Strutt and Parker are one of the largest property partnerships in the UK.
What is John Strutt's birthday?
John Strutt was born on November 12, 1842.
When was John Strutt born?
John Strutt was born on November 12, 1842.
When was James Strutt born?
James Strutt was born on 1924-01-08.
