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A "superscript" number before the symbol for the element - eg.
11C
12C
13C
14C
Denotes the four isotopes of the element Carbon.
The superscript number is a count of the total number of "nucleons" (protons and neutrons) in the atomic nucleus of the atom.
If you subtract the elements "atomic number" (which is the number of Protons that element has) from the Isotope (superscript) number you get the number of Neutrons in that isotope.
From this you will be able to deduce that isotopes of elements are caused by a variation in the number of neutrons in an atom of an element.
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What are atoms of an element that have the same number of protons as other atoms of that element but a different number of neutrons called?
They are called isotopes,
What are 3 positive things that radioactive atoms can be used for?
- radiodiagnostic- treatment with isotopes- isotopes as tracers- sources of energyand many other
What two atoms have the same number of protons but different numbers of neutrons. What can you conclude about these two atoms?
They are isotopes of each other.
Why is the atomic weight of bromine listed on the periodic table not a whole number?
Like almost all of the other elements bromine is a mixture of so-called isotopes. All of these isotopes are bromine and have almost identical chemical properties. They all have the same number of protons in the nuclei of their atoms. However, the numbers of neutrons in their nuclei vary. The atoms of some isotopes of bromine are a little heavier than the atoms of other isotopes. The atomic weight of bromine is the average weight of all of the isotopes of bromine, so it cannot be a whole number.
Why can't two atoms with the same mass number be isotopes of each other?
The number of protons must be the same.
What are atoms of an element that have the same number of protons as other atoms of that element but a different number of neutrons called?
They are called isotopes,
Where do the neutrons come from to have an element be considered an isotope?
# Elements are not isotopes, atoms are isotopes of an element. # There are no atoms that are not isotopes, so it's not a matter of being "considered" an isotope or not. # It doesn't matter where the neutrons come from, whatever that means. All atoms are isotopes of some element or other.
What part of daltons theory was modified after discovery of isotopes?
Atoms may not be changed into other atoms.
Two atoms have the same number of protons but different numbers of neutrons. What can you conclude about these two atoms?
The atoms are isotopes of each other because they have the same number of protons, making them the same element. The differing number of neutrons results in a difference in atomic mass between the two isotopes.
Is mixtures or isotopes are atoms of the same element with different numbers of neutrons?
Isotopes are atoms of the same element with different numbers of neutrons. Mixtures, on the other hand, are combinations of different substances that are physically mixed together, but not chemically bonded.
What is the relationship between atoms ad isotopes?
A natural chemical element may be monoisotopic or has isotopes. Isotopes are atoms but they differ from other isotopes by the number of neutrons. This involve a different atomic mass and different physical properties or sometimes (for light isotopes) different chemical properties. Also, all chemical elements have radioactive, artificial isotopes.
Do isotopes contain more electrons than other Atoms?
No, they contain different number of electrons. Isotopes differ in their number of neutrons.
What are 3 positive things that radioactive atoms can be used for?
- radiodiagnostic- treatment with isotopes- isotopes as tracers- sources of energyand many other
What Two Atoms have the same number of protons but different number of neutrons what can you conclude about these two Atoms?
They are isotopes of each other.
What two atoms have the same number of protons but different numbers of neutrons. What can you conclude about these two atoms?
They are isotopes of each other.
Why is the atomic weight of bromine listed on the periodic table not a whole number?
Like almost all of the other elements bromine is a mixture of so-called isotopes. All of these isotopes are bromine and have almost identical chemical properties. They all have the same number of protons in the nuclei of their atoms. However, the numbers of neutrons in their nuclei vary. The atoms of some isotopes of bromine are a little heavier than the atoms of other isotopes. The atomic weight of bromine is the average weight of all of the isotopes of bromine, so it cannot be a whole number.
When two atoms have the same number of protons but a different number of neutrons what are these atoms?
They are isotopes of each other.
