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The Periodic Table is arranged in the order of increasing atomic numbers of the elements. It starts from an alkali metal and end at an inert gas. The next element is again an alkali metal and is placed just below the previous alkali metal. Sodium (Na), Potassium (K), etc are examples of alkali metals and Helium (He), Krypton (Kr), etc are examples of inert gases.
The horizontal lines of elements form a period and the vertical ones form a group. Elements falling under the same group show similar chemical properties.
Group 1 elements are called Alkali metals they all have one electron in their outer shell, they are the most reactive elements with Lithium been the least and Francium been the most reactive element. The elements are arranged from top to bottom with lithium at the top and francium at the bottom.
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Mendeleevs periodic table of elements was created in 1901?
Mendeleev's periodic table of elements certainly wasn't created in 1901
What did Mendeleevs periodic table look like?
It looks the same as it did when Mendeleev created it. There are no changes made to the table throughout the years because Mendeleev had predicted the correct placement for all of our current known elements.
What was Mendeleevs proposal?
Dmitri Mendeleev was a Russian chemist who proposed the Periodic Law. He published the first periodic table of the chemical elements in 1869, based on the increasing atomic masses of the different elements.
Why do the key features of the periodic table relate to the results of titration?
You don't need the periodic table for titrations (manual or potentiometric).
What is the othe man who was important in developing a periodic table?
A Russian, Mendeleev, invented the periodic table.
How was mendeleevs periodic table like todays periodic table?
it has elements
Why the improvement in Mendeleevs periodic table was made?
To understand the concept of Periodic Table
Mendeleevs periodic table of elements was created in 1901?
Mendeleev's periodic table of elements certainly wasn't created in 1901
Main idea of mendeleevs first periodic table?
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
What were mendeleevs discoveries and predictions and discoveries abot the periodic table?
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
What changes were made to the periodic table after Dmitri mendeleevs discovery?
they changed the 3 new Elements.
Mendeleevs periodic table was useful because it enabled scientists to predict properties of unknown?
elements
Which two elements on the periodic tabel would have been placed in different groups in moseleys periodic table but not in mendeleevs?
bi and po
Who is mendeleevs?
Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
What did Mendeleevs periodic table look like?
It looks the same as it did when Mendeleev created it. There are no changes made to the table throughout the years because Mendeleev had predicted the correct placement for all of our current known elements.
What was Mendeleevs proposal?
Dmitri Mendeleev was a Russian chemist who proposed the Periodic Law. He published the first periodic table of the chemical elements in 1869, based on the increasing atomic masses of the different elements.
Why is Dimitri mendeleev important to the periodic table?
He made the first periodic table.
