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Since John Newlands proposed his octaves in the 1860s, several elements have been discovered, including those in the lanthanide and actinide series, as well as synthetic elements like technetium, francium, and all the transuranium elements up to oganesson (element 118). Additionally, elements such as gallium, germanium, and scandium were identified after Newlands' time. Advancements in nuclear physics and chemistry have led to the synthesis of heavier elements that were not known during Newlands' era.
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What were the first 5 elements discovered?
The first five elements discovered were gold, copper, silver, lead, and iron. These elements have been known since ancient times due to their distinct properties and uses.
What is the name of the scientist who first developed the periodic table?
You can mainly blame the Russian chemist Dmitri Mendeleyev (or Mendeleev, or Mendeleyef - there are many different spellings of his name.)Back in the early 19th century, a German chemist named Johann Dobereiner noticed that some of the elements fitted naturally into groups of three, called triads, with similar chemical and physical properties. The English chemist John Newlands was the first to notice that if you arranged the elements in order of atomic mass, they seemed to have similar physical and chemical properties every eight elements. He called this the law of octaves, because the way in which these properties repeated every eight elements was similar to the way the same note was repeated every eight notes (octave) on a piano. However, at times his scheme broke down, and he realised there was something wrong with it, abandoning the octave idea. His fellow chemists mocked him for it - someone once said he'd have better luck listing the elements in alphabetical order and looking for patterns!It was Mendeleyev who in 1859 took Newlands' idea of looking for repeated properuties in the elements, and decided to create a table of elements in increasing atomic mass. Unlike Newlands, he left gaps where the pattern did not fit, and predicted new elements would be discovered, predicting their properties from the table. These elements were subsequently discovered, and since then, Mendeleyev's periodic table has been the most useful chart in chemistry.
What are the four elements that matter is made of?
there is no such thing as the four elements that make up the world... this was believed in ancient times... these four elements were wind, fire, earth and water but now since we hav e developed and now have a greater undertanding of the world we live in we have discovered that there are alot of "real" elements that make up the world
Which was the first planet discovered and who discovered?
There was no first discovered planet. Mercury, Venus, Mars, Jupiter, and Saturn have been known since ancient times from before anything was actually documented. They have no particular discoverer.
Which was discovered first Magnesium or Barium?
No, Iron was known to man since ancient times... but magnesium was discovered in 1808 by Sir Humphrey Davy.
What elements were discovered before 1766?
Some of the elements discovered before 1766 include carbon (discovered in ancient times), copper (known since prehistoric times), iron (also known since ancient times), sulfur (known since antiquity), and zinc (used in ancient times as well).
When was elements discovered?
no one knows it was discovered in prehistoric times
What were the first 5 elements discovered?
The first five elements discovered were gold, copper, silver, lead, and iron. These elements have been known since ancient times due to their distinct properties and uses.
Who discovered the element in the perodic system?
Many people were involved in the discovery of the elements. Certain elements have been known since ancient times and man will never know who truly discovered those. There is more information at the related link.
Which element was discovered first copper or arsenic?
Copper was discovered first, since it occurs naturally in its pure form and has been used by humans since ancient times. Arsenic, on the other hand, was discovered later and is a metalloid that is typically found in combination with other elements in minerals.
Who were the people who discovered France?
Nobody 'discovered' France. It is inhabited since prehistoric times.
What elements were discovered in prehistoric times?
carbon, sulfer,iron, copper, and zinc
When were scorpions discovered also where were they and who discovered them?
Scorpions have been known to humans since ancient times.
When was new France discovered?
Nobody 'discovered' France. It is inhabited since prehistoric times.
Who discovered quartz?
truthfully nobody knows who discovered quartz. it has been around since the roman times
How many times has Antarctica been discovered?
Since Antarctica is 'discovered' by every first-time visitor, the answer to your question is tens of thousands of times, since that's the number of people who have visited Antarctica in history.
Who discovered lampreys?
Sea Lampreys have been known since ancient times.
