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What is defined as a table of elements listed in order of chemical reactivity?
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∙ 14y ago
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How many elements are listed on the periodic table that has symbols for them?
All the elements listed on periodic table has symbols for them.There are total 118 elements in periodic table.
What is listed in the periodic table?
The periodic table is a list of the chemical elements. They are arranged to show chemical relationships.
Has chemical analysis of lunar rocks shown that chemical elements not listed in the periodic table exist on the moon?
No, elements are defined by the number of protons they have and the periodic table contains all the elements up to over 100 protons, much past this point they become very unstable and radioactively decay into lighter (less protons in the nucleus) atoms. Elements this heavy do not occur naturally so we would not find them on the moon.
Are compounds listed in the periodic table?
No. Only pure elements are listed in the periodic table of elements.
What is a substance that can not be broken down in to any other substances by any chemical means?
This is the definition of an element. The known elements are listed on the periodic table of elements.
What is the simplest substance that can't be broken down into something simpler called?
A chemical element. All the known chemical elements are listed in the 'periodic table'.
What are the differences between groups and periods?
Groups consist of elements listed in the same column. These elements share similar chemical properties, such as number of valence electrons. Periods are the rows of elements. These elements do not share chemical properties, as periods are organized by increasing atomic number (number of protons).
Why are the elemets in the periodic table listed in ceratin groups?
The vertical "groups" group elements by chemical properties the horizontal "periods" group elements by the number of energy levels
What what two atoms produced when they combine?
If you were referring to two actual atoms they were not listed. When two atoms of different chemical elements bond together they form a chemical compound.
What two atomes produce when they combine?
If you were referring to two actual atoms they were not listed. When two atoms of different chemical elements bond together they form a chemical compound.
Why modern periodicity consist the protons of any atom?
In the periodic table chemical elements ar listed after the number of protons in the atomic nucleus.
When was Mendeleev's contribution to the atomic theory published?
In 1869, Dmitri Mendeleev listed the elements in order of increasing atomic weight and grouped elements that seemed to have similar chemical reactions.
