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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 has different atomic masses?
Different atoms and elements that have different number of protns, neutrons and electrons.Duh!
What are the atomic number and mass of the animals?
Animals are not atoms and have neither an atomic number nor an atomic mass.
What is the basis of arranging the elements in the periodic table?
Elements in the periodic table are arranged based on their atomic number, which represents the number of protons in the nucleus of an atom. This arrangement helps to group elements with similar properties together in periods and groups.
Why could you use clues about atomic mass to place elements even though the table is now based on atomic number?
the bigger the mass of an element, the higher its atomic number.
How were the atomic number and the atomic masses of the elements determined?
Atomic masses are determined by mass spectrometry. The atomic number is identic with the number of protons in the atom - depends on position in the periodic table.
What do the molar masses of any two elements contain the same number of what?
Atoms have atomic weight not molar mass. Any atom-gram has 6,022 141 29(27)×1023 (this is the number of Avogadro) atoms.
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.
How are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on peridoic table?
Elements are arranged in a periodic table by atomic number, lower on top and left. Atomic masses have no direct relationship to the arrangement of atoms, although generally atoms with higher atomic numbers will have higher atomic masses. (There are at least three exceptions for atoms with atomic numbers differing by 1.)
What has different atomic masses?
Different atoms and elements that have different number of protns, neutrons and electrons.Duh!
What are the atomic number and mass of the animals?
Animals are not atoms and have neither an atomic number nor an atomic mass.
What is the basis of arranging the elements in the periodic table?
Elements in the periodic table are arranged based on their atomic number, which represents the number of protons in the nucleus of an atom. This arrangement helps to group elements with similar properties together in periods and groups.
Why could you use clues about atomic mass to place elements even though the table is now based on atomic number?
the bigger the mass of an element, the higher its atomic number.
Why the mass number of the same atom of an element is not constant?
Since you have isotopes of elements. Isotopes are elements with different number of neutrons hence why the different atomic masses for the same elements.
Why aren't the atomic masses of most elements whole numbers?
The atomic masses of most elements are not whole numbers because they take into account the average mass of all the isotopes of that element, which have different masses due to varying numbers of neutrons. This results in a weighted average that is not a whole number.
Which determine the chemical properties of an element?
the atomic masses and atomic numbers... group number and period number... valence electrons and number of shells... these all determine the chemical properties of elements...
Which two elements have an atomic mass less than twice their atomic number?
Elemental hydrogen and helium have atomic masses less than twice their atomic numbers.
