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What are the characteristics of a atom?
A radioactive atom is an atom of an element with an unstable nucleus.
Where in the atom do radioactive emissions originate?
They originate in the nucleus of the atom.
What is radioactive in physics?
the unstable nucleus of an atom
What is a characteristic of a radioactive nucleus?
A radioactive atom is an atom of an element with an unstable nucleus.
What is when the nucleus of an atom decomposes called?
radioactive decay
The nucleus or atom left behind when a nucleus disintegrates or splits is?
Sometimes radioactive
What is an atom which has unequal number of protons and neutrons in the nucleus?
Radioactive
The atom that remains after a nucleus disintegrates is what?
smaller than the original atom and possibly radioactive
What part of an atom causes radioactivity?
It is the nucleus of the atom that undergoes change during radioactive decay.
When the nucleus of an atom changes by emiting particles what is this called?
radioactive decay
What happens if an atom is too ionized?
If your atom is too ionized, it will likely zip away from you and attach itself to a nearby atom or molecule. An atom becomes radioactive when its nucleus contains too many or too few neutrons. Try to keep the same number of neutrons and protons as you build your atom. If the imbalance is too great, radioactive decay will occur.
What is An unstable isotope is called what?
It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.
