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An atomic element are able to exist in nature with single atoms as their basic units. Most elements fall into this category and example is helium. He
Molecular elements do not normally exist in nature as a single atom but exist as molecules- two or more elements bonded together.
Most of these are diatomic molecules ( they exist in pairs in nature) N, H, O, F, Cl,Br,I and they will look like the follows in nature H2, Cl2 .......
the polyatomic are P, S, Se, such as P4, S8....
these elements exist primarily as diatomic or polyatomic molecules....
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Elements were originally placed in order of atomic now they are placed in order of atomic?
Elements were originally placed in order of atomic massnow they are placed in order of atomic number
In what order did Mendeleev arrange the elements in the first periodic table?
Mendeleev arranged the elements in the periodic table according to their atomic masses.
Which scientist arranged the elements in order of increasing atomic number rather than increasing atomic mass?
Henry Moseley arranged the elements in order of increasing atomic number rather than increasing atomic mass, which led to the modern periodic table.
What are the three pairs of elements that are out of order in the periodic table in terms of their atomic masses. Why it is necessary to invert their order in the table?
The three pairs of elements that are out of order in terms of their atomic masses are iodine and tellurium, cobalt and nickel, and uranium and neptunium. It is necessary to invert their order in the table to maintain the order of increasing atomic masses within each group or period, ensuring that elements with consecutive atomic numbers also have consecutive atomic masses.
In the periodic table the elements are arranged in order of increasing?
In the periodic table, the elements are arranged in order of increasing atomic number from left to right and top to bottom. This arrangement allows elements with similar chemical properties to be grouped together in columns known as groups or families.
Elements were originally placed in order of atomic now they are placed in order of atomic?
Elements were originally placed in order of atomic massnow they are placed in order of atomic number
Are the elements on a periodic table arranged in order of decreasing atomic mass?
No. The elements are arranged in order of increasing atomic number.
What is arranged in the order of their atomic number?
Elements are arranged in the order of their atomic number on the periodic table.
What does the atomic number and atomic mass have to do with the arrangement of the elements on the periodic table?
The elements on the periodic table are arranged in order of increasing atomic number.
What order are elements listed on the periodic table?
Atomic number and atomic mass
Which two elements on a periodic table be reversed if you used atomic mass?
Tellurium (Te) and iodine (I) would be in reverse order if the elements were placed in order of atomic mass instead of atomic number.
In what order did Mendeleev arrange the elements in the first periodic table?
Mendeleev arranged the elements in the periodic table according to their atomic masses.
When elements are arrange in order of increasing atomic no is called?
The Periodic Table of Elements.
How are the modern table arranged differ than Mendeleev's table?
Mendeleev arranged the elements in order of increasing atomic mass.Moseley arranged the elements in order of increasing atomic number.
What did Dimitri Mendeleeve do?
Dmitri arranged the elements in order of increasing atomic masses. He arranged elements in rows and columns according to atomic masses.
What neighboring elements have atomic masses out of order?
Tellurium and Iodine
Which scientist arranged the elements in order of increasing atomic number rather than increasing atomic mass?
Henry Moseley arranged the elements in order of increasing atomic number rather than increasing atomic mass, which led to the modern periodic table.
