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An atom is an atom of a particular element because of the number of protons it has in its nucleus. Atoms also have neutrons in the nucleus but the number of neutrons is not always the same.
For example, Carbon has 6 protons in its nucleus. Most carbon atoms also have 6 neutrons but some have 7 or 8. The atomic weight is therefore 12 (6+6), 13 (6+7) or 14 (6+8). These are the natural isotopes of carbon and they are called Carbon-12, Carbon-13 and Carbon-14. Carbon-14 is unstable, decays over time and is therefore radioactive isotope (radio-isotope)
So, isotopes are atoms with the same number of protons but different numbers of neutrons. All atoms are isotopes.
What else can I help you with?
What element were all atoms in the beginning?
All atoms in the beginning were hydrogen atoms.
What is chlorofluorocarbon?
A hydrocarbon with all the hydrogen atoms replaced with either chlorine atoms or fluorine atoms. They cannot be all chlorine or all fluorine atoms, but must be some mixture.
Are all atoms identical?
No, all Atoms are totally different from one another.
What state do atoms not move at all?
In a solid atoms do not move at all, but they can vibrate.
What are substances in which all atoms are alike?
A substance in which all atoms are alike is an element.
Are all atoms the same?
Isotopes are atoms of the same element with varying number of neutrons. Thus, not all atoms are the same.
Do tomatoes have atoms in them?
Yes, all matter has atoms
Which molecule has the atoms in it?
All molecules are made up of atoms. The type and arrangement of atoms in a molecule determine its properties and behavior.
What are All the Atoms in argon?
Argon is an element and all the atoms in argon are argon atoms.
Do all elements have atoms and molecules?
All elements have atoms, but most do not form molecules.
All substance are built from what?
All Substances are built from Atoms
Do all atoms decay over time?
No, not all atoms decay over time. Some atoms are stable and do not undergo radioactive decay.
