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Did the existence of isotopes affect the validity of the atomic theory?
Wiki User
∙ 12y ago
Dalton's theory said that "atoms of the same element are the same as each other in terms of mass, color, and size." We know that this cannot be true because isotopes of the same element, oxygen for example O-16 and O-17, have different mass numbers (atomic mass). Dalton's theory said that "atoms of the same element are the same as each other in terms of mass, color, and size." We know that this cannot be true because isotopes of the same element, oxygen for example O-16 and O-17, have different mass numbers (atomic mass).
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoDaltons atomic thory says that all atoms of the same element are alike in mass, colo and size.
With the introduction of theory of isotopes the same element can have different mass number with the difference in the number of neutrons ( sub atomic particle ).
Thus existence of isotopes contradict Dalton's Atomic theory.
: - vineeth
Wiki User
∙ 11y agoYes because Dalton stated that 'All atoms of a given element are identical, having the same mass, etc' Elements have atoms called isotopes which have a different number of neutrons and that changes the mass of the atom. Therefore, not all atoms in an element are identical as far as mass goes
Wiki User
∙ 12y agoNOOO!!!!
The validity of Dalton theory is not affected, generally speaking; but after a more serious examination the existence of isotopes is an unpredictible deviation.
Wiki User
∙ 7y agoYes; the principle "All atoms of a given element are identical" is not valid today.
Wiki User
∙ 13y agoi don't know
so arks some one else
Wiki User
∙ 11y agoYes.
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What atoms with same atomic number but different atomic masses?
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
Which is the average of the mass numbers of an element's isotopes?
the Atomic Mass
Atoms that have the same atomic numbers but different atomic weights are called what?
If they have the same atomic number but different mass, then they have a different number of neutrons, and they are called ISOTOPES.
The various atomic weights of the same element are called?
Atoms of the same element with different atomic masses are known as isotopes. Isotopes differ only by the number of neutrons present in the nucleus of the isotopes. The number of protons is the same for all isotopes of an element (because if there were different numbers of protons, then the atoms would not be of the same element).
What is a similarity and a difference between isotopes of an element?
All isotopes of an element have the same number of protons in the atomic nucleus, which is its atomic number on the periodic table. All isotopes of an element contain different numbers of neutrons in their atomic nuclei, which causes the isotopes of an element to vary in mass number (protons + neutrons).
How does the existence of isotopes relate to atomic masses not being wholes number?
Mass of isotopes are not integers.
Does the existence of isotopes contradict part of Dalton's original of atomic theory?
Yes.
Does isotopes affect the physical properties of the element?
Isotopes contribute to the atomic weight of a chemical element.
What is the same in isotopes?
isotopes always have the same? mass # & atomic #, or atomic # and atomic weight, or atomic # but different mass #'s
What atoms with same atomic number but different atomic masses?
Isotopes of the same element have the same number of protons (atomic number) but differ in number of neutrons (hence atomic masses).
Atoms of same chemical element that have different atomic mass are known as?
Isotopes. They differ in the number of neutrons in the nucleus.
What do isotopes' differences depend on?
Isotopes depend of the number of neutrons in the nucleus. The number of protons will always remain the same for that particular element. The number of neutrons may vary because they do not affect the charge, but rather its weight. This is why we have peculiar numbers for the average atomic mass, because some elements have different isotopes and based on how common they are will affect its average atomic mass.
Do the atomic numbers of such isotopes differ?
No. Isotopes have the same atomic number, protons and electrons. They have different neutrons.
Do the atomic number of isotopes differ?
No. Isotopes have the same atomic number, protons and electrons. They have different neutrons.
How did subatomic particles and isotopes affect the atomic theory?
The discovery of these left his atomic theory (which states that atoms are indivisible, singular and the same respectively to elements) riddled with wholes.
How do the atomic number of the different isotopes an element compare?
The atomic number is the same for the all isotopes of a chemical element.
Why some isotopes were written without its atomic number?
Different isotopes of an element have the same atomic number, they (only) differ in (atomic) mass NUMBER.
