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What was the problem with Mendeleevs table?
He left too many spaces between the elements......
Why was mendeleev's table called periodic?
When Mendeleev made the table, he found that elements with similar chemical properties formed groups. This is because the pattern of the table reflects the pattern of filling the electron shells. Mendeleev didn't know this, and his achievement is all the greater because he had only his knowledge of the way elements behave to guide him.
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.
Did Mendeleev noticed a definite pattern in the valence of the elements?
the samepattern for how many protons all elements have to they are all factors of each other. That is why the periodic table is set up the way it is in that awkward shape
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 was the problem with Mendeleevs table?
He left too many spaces between the elements......
How aggregate is used in maths?
It is pretty old fasioned. It was used to refer to a set with infinitely many elements or with repeated elements (or both).
How many times is the pattern repeated in Pachelbel's canon?
11
Why was mendeleev's table called periodic?
When Mendeleev made the table, he found that elements with similar chemical properties formed groups. This is because the pattern of the table reflects the pattern of filling the electron shells. Mendeleev didn't know this, and his achievement is all the greater because he had only his knowledge of the way elements behave to guide him.
What is a repeated rhythm?
A repeated rhythm is when a specific pattern of beats or notes is played consistently throughout a musical piece. It helps create structure and drive in the music, providing a foundation for the melody and other musical elements to build upon.
How many year janganna repeated?
in india it is repeated after every 10 years
How many times does almond has been repeated in Bible?
"Almond has been" is not repeated in the Bible
What is it called when the number or expression that is used as a factor is a repeated multiplication?
The base is the repeated factor. The exponent tells how many times the base is repeated.
How many syllables have repeated?
Three.
How many times Huda repeated in Quran?
It is repeated 85 times in Quran.
How many words have repeated vowels?
There are many words with repeated vowels in the English language. Examples include "bookkeeper" and "zoology."
A number used as a repeated factor is the .........?
The base is the repeated factor. The exponent tells how many times the base is repeated. 52 = 5 x 5
