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True or false a Russian chemist Dmitri mendeleyev constructed the periodic table by which he calculated the atomic weights of the different elements?
True--PainRain
Why did they number elements on periodic table?
No one give number to elements in periodic table. they have been calculated
What do elements in the periodic table do?
The periodic table is just a way of grouping elements according to their atomic numbers. It helps scientists to understand why different elements react in different ways.
Who was the first one to make a periodic table?
Russian chemist Dmitry Mendeleyev constructed the original periodic table about 1870. He arranged his table by grouping the similarities of the various elements.
Mass number Why is it not the number on the periodic table?
Elements have different isotopes and each isotope will have different atomic mass. As such it is not possible to list the mass number of all the isotopes on the periodic table. However, the atomic mass is generally given on the periodic table which is generally calculated taking into account all the isotopes and its percentage.
Meyer contributions to the periodic table are?
Mendeleev developed the periodic table of elements by arranging the elements in order of increasing atomic mass in 1869. He discovered that elements with similar properties occurred in a periodic pattern. He was able to predict the properties of elements that were missing at the time because of this pattern. In 1914, Moseley contributed to the periodic table by reorganizing the elements according to atomic number.
What are the different rows of elements in the periodic table called?
The rows of elements in the periodic table are called periods. There are a total of 7 periods in the periodic table, each representing a different energy level or shell in which the elements' electrons are arranged.
What does grouping on the periodic table of elements have to do with reactivity?
Grouping describes the behavior of elements. Different groups have different properties.
Are there only 90 different elements?
no because there are 92 elements in periodic table that are natrul
Why are there different abbreviations in the periodic table?
because they have different elements in a one block.
How different are elements on the periodic table?
Very different. Each element is unique.
What did the periodic table do?
it sorts out all the different scientific elements :)
