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What did Dmitri Mendeleev discover?
he drew up a table that grouped elements according to their atomic weights, his table became the basis for the periodic table of elements used today.
Why is the periodic table called the key of life?
It is called the key of life because all the elements or compounds of the elements of on the periodic table make up the world.
What can the vast majority of elements in the periodic table be classified as?
The vast majority of elements in the periodic table can be classified as metals. Metals make up the s-block, d-block, and f-block of the periodic table. There are even a few elements in the p-block with metallic properties called metalloids.
Are iron and sulphur metals?
Iron sulfide is not a metal. It is a chemical compound with the appearance of a metal, but it does not have some of the characteristics of a metal. For example, it does not conduct electricity.
What is the name of German scientist who came up with a periodic table independently but at the same time as the Russian scientist?
The Russian chemist Dmitri Mendeleev's periodic tables are dated 1869 and 1871. Where as the German, Julius Lothar Meyer brought out an alternative periodic table in 1870. Both tables are very similar, but were definitely independent works.
Was the periodic table always been set up the way it is today?
the periodic table is set up by atomic number, obviously. the atomic number is equal to the amount of protons, so the periodic table is set up by amount of proton order. During the time more than 100 versions of the periodic table were proposed. See the link bellow for some details; also the links of this...link.
How is information set up on the periodic table?
Information is set up by giving atomic number and element symbol.Elements are arranged in order of increasing atomic no.
When did Dmitri set up the periodic table?
Dmitri Mendeleev set up the periodic table in 1869. He organized the elements based on their properties and atomic weights.
Are the groups of the periodic table set up in columns or rows?
The vertical columns in a periodic table are called Groups.
How do you explain how the periodic table set up?
The periodic table contains 18 columns known as groups and 7 rows known as periods. The properties of the elements are found to be periodic when arranged in order of increasing atomic number.
In what century was the periodic table set up?
The periodic table was set up in the 19th century, specifically in 1869 by Dmitri Mendeleev. Mendeleev organized the elements based on their properties and atomic weights, creating the foundation for the modern periodic table.
What are the patterns in the periodic table?
There are many patterns on the Periodic Table! They are in order by family, class, and atomic number. If you look up the periodic table, you will most likely find many more!
Why is the table of elements known as the periodic table?
It is called the periodic table because the elements are arranged in order of increasing atomic number, showing periodic trends in their physical and chemical properties. These patterns repeat at regular intervals, or periods, across the table.
Is elements on the periodic table?
The periodic table is entirely made up of elements.
Who came up with periodic table?
Dmitri Mendeleev came up with the modern Periodic Table in 1869.
What is a period or series on the periodic table?
A period on the periodic table is a horizontal row that represents the number of electron shells an atom has. A series on the periodic table refers to a group of elements that share similar chemical properties, such as the lanthanide and actinide series.
Did Dmitri Mendeleev develop the first periodic table?
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
