Q:
How many elements are in the periodic table?
A:
Quick Answer
There are 118 known elements on the periodic table. The most recently discovered element, Ununoctium, was first reported by Russian scientists from Dubna in 2002.
Continue Reading
Credit:
Jaap Hart
E+
Getty Images
Full Answer
Russian scientist Dmitri Mendeleev is usually credited with the first known publication of a periodic table of elements, in 1869. He created the table by arranging known elements into rows and columns based on atomic weight and the similarity between elements. Using this method, he was also able to predict the existence of heretofore unknown elements, such as Gallium and Germanium. The standard periodic table style in use today is attributed to Horace Deming, an American scientist.
Learn more about ChemistrySources:
Related Questions
-
Q:
Why is the periodic table called the periodic table?
A: The periodic table's name comes from the fact that it arranges the elements into repeating sets, otherwise known as "periods." These periods are defined by... Full Answer >Filed Under: -
Q:
How is the periodic table organized?
A: The elements in the periodic table are organized by their atomic numbers, their electron configurations and the recurring properties found in them. Element... Full Answer >Filed Under: -
Q:
What is the Periodic Table of the Elements?
A: The periodic table of elements is a chemistry reference that lists elements by increasing atomic number, which typically correlates to their atomic masses.... Full Answer >Filed Under: -
Q:
Why is the periodic table useful?
A: The periodic table is useful because it identifies and arranges all known elements in an informative manner. Elements are arranged into periods and familie... Full Answer >Filed Under:
