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Why the atomic mass numbers listed for elements on the Periodic Table are not whole numbers.?
Why are atomic masses of elements not generally whole numbers? The atomic masses listed on the periodic table are a weighted AVERAGE of an element'sisotopes. ... An element's atomic number is the number of protons in its nucleus. Number of protons specifies atom type.
What mostly fills the periodic table?
The periodic table of the elements is filled mostly with metal elements.
What does the periodic table cotains?
The periodic table contains all the chemical elements. Some periodic tables, depending on the version, includes additional information about each element, such as the melting points, boiling points, atomic masses, mass numbers, etc.
Which statement best explains why most atomic masses on the periodric table are decimal numbers?
Most atomic masses on the periodic table are decimal numbers because they are weighted averages of the masses of all isotopes of an element, taking into account their relative abundance. Since isotopes have different masses, the atomic mass is typically not a whole number.
What did Dmitri invented in 1869 for the periodic table?
Dmitri invented a periodic table in 1869 where he arranged the elements in order of increasing atomic masses.
Why don27t elements in the periodic table have whole numbers for their atomic masses?
Because the masses of protons, neutrons and electrons are not whole numbers.
Why the atomic mass numbers listed for elements on the Periodic Table are not whole numbers.?
Why are atomic masses of elements not generally whole numbers? The atomic masses listed on the periodic table are a weighted AVERAGE of an element'sisotopes. ... An element's atomic number is the number of protons in its nucleus. Number of protons specifies atom type.
What mostly fills the periodic table?
The periodic table of the elements is filled mostly with metal elements.
What does a periodic table have?
a modern periodic table should have the 118 elements, their atomic numbers, and their masses. to find the number of protons and electrons, they are the same as the atomic number. to find the neutrons, subtract the protons from the mass.
State the periodic law on which Mendeleev's Periodic table was based and why and how this periodic law changed?
Mendeleev's Periodic Table was based on the periodic law which states that the properties of elements are a periodic function of their atomic masses. This law changed with the discovery of atomic number by Moseley which stated that the properties of elements are a periodic function of their atomic numbers, leading to a more accurate and modern periodic table based on atomic number.
What does the periodic table cotains?
The periodic table contains all the chemical elements. Some periodic tables, depending on the version, includes additional information about each element, such as the melting points, boiling points, atomic masses, mass numbers, etc.
Is the periodic table organized by atomic numbers?
The Periodic Table is.
Who discover the old Periodic Table?
Mendeleev discovered old periodic table. He arranged elements in order of atomic masses.
How did Amitri Mendeleev develop the First periodic table?
he developed the first periodic table in the increasing order of atomic masses of elements.but after the discovery of isotopesthis periodic table was not consider to be effective.
Main idea of mendeleevs first periodic table?
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
Which statement best explains why most atomic masses on the periodric table are decimal numbers?
Most atomic masses on the periodic table are decimal numbers because they are weighted averages of the masses of all isotopes of an element, taking into account their relative abundance. Since isotopes have different masses, the atomic mass is typically not a whole number.
Who listed the elements in a table accourding to their atomic masses?
Mandeleev who predicted periodic table.
