0
Add your answer:
Earn +20 pts
Who placed all elements in right place according to properties?
In 1869, Dmitri Mendeleev created the first full version of the Periodic Table, including all known elements and leaving places for:Ekaboron or scandiumEkaaluminium or galliumEkamanganese or technetiumEkasilicon or germaniumScientists continue filling up the table as new elements are found, a process that goes on today.
Why did Mendeleev swap Tellurium and Iodine around?
Iodine has a lower relative atomic mass than tellurium, meaning it should come before tellurium following Mendeleev's rule. However, in order to place iodine with the elements that consisted of similar properties, he had to put it after tellurium. Thus breaking his own rule.-Hope this helped :)
Which element from Mendeleev's seventh column is now considered out of place?
In the past, manganese was erroneously located.
What is the modern name for eka-silicon?
Ekasilicon is germanium['eka' is Sanskrit language for: 'first' place down under Si)Germanium was isolated in 1886, and provided the best confirmed prediction of Mendeleev's periodic table, which was built up before the discovery of Ge.(Professor Dmitri Mendeleev published the first Periodic Table of the Atomic Elements in 1869).When he proposed his periodic table, he noted some gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
How many elements did Mendeleevs original periodic table have?
In 1863 56 known elements were discovered. Mendeleev's first attempt*) resulted in 9 elements in three rows (periods) and three groups (-1, +1, +2 valence groups):Cl - K - CaBr -Rb -SrI - Cs - Ba*) cit. from wikipedia :"I saw in a dream a table where all elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper, only in one place did a correction later seem necessary."- - - - Mendeleev 1869, as quoted by Inostrantzev.
What place is Dmitri Mendeleev in the birth order?
Mendeleev was born in the village of Verkhnie Aremzyani, near Tobolsk in Siberia.
Did someone make the periodic table?
Yes, Dmitri Mendeleev made the Periodic Table of Elements, and interestingly enough, he did it without knowing all of the natural elements! As scientists discovered new elements, they realized the elements fit right into place on Dmitri's table.
Who arrange the periodic table of elements?
the place where an element sits on a periodic table is not chosen by anyone. the place where it sits is chosen by it's atomic number or the number of protons it has eg lithium 3 protons its third
How did mendeleev place arsenic and selenium?
ball sack
Where can I buy birth announcements from?
If you are trying to find a good place to order some birth announcements the best place for your to go in to order and purchase them at a good price would be on the website zazzle.
Who will be the place kicker for french rugby team on Saturday?
Dmitri Yachvili
Who placed all elements in right place according to properties?
In 1869, Dmitri Mendeleev created the first full version of the Periodic Table, including all known elements and leaving places for:Ekaboron or scandiumEkaaluminium or galliumEkamanganese or technetiumEkasilicon or germaniumScientists continue filling up the table as new elements are found, a process that goes on today.
What are some properties mendeleev used to place the elements in order?
He mostly used this: -How much atomic mass (at first he used this method but he later corrected it to this:) -atomic number or the number of protons He used this to determined the order of the periodic table together:)
Why did Mendeleev swap Tellurium and Iodine around?
Iodine has a lower relative atomic mass than tellurium, meaning it should come before tellurium following Mendeleev's rule. However, in order to place iodine with the elements that consisted of similar properties, he had to put it after tellurium. Thus breaking his own rule.-Hope this helped :)
Which element from Mendeleev's seventh column is now considered out of place?
In the past, manganese was erroneously located.
What is the modern name for eka-silicon?
Ekasilicon is germanium['eka' is Sanskrit language for: 'first' place down under Si)Germanium was isolated in 1886, and provided the best confirmed prediction of Mendeleev's periodic table, which was built up before the discovery of Ge.(Professor Dmitri Mendeleev published the first Periodic Table of the Atomic Elements in 1869).When he proposed his periodic table, he noted some gaps in the table, and predicted that as-of-yet unknown elements existed with properties appropriate to fill those gaps.
Where can you find a hard copy of a infants long form birth certificate?
You can order one from the state where the birth occurred. Depending on the state, you may have to order the long form from the county of birth. Vitalchek.com is the best place to start - you can order your child's birth certificate and see what forms are available in each vital records office.
