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atom is the smallest part of element
transmutation
The type of atom is now different from what it was. (It has a new identity.)
The smallest quantity of an element is an atom.
An atom is the smallest piece of an element that can be identified as that element.
It is the atom
atom is the smallest part of element
When the number of protons is changed in an atom, the result is the formation of a NEW ELEMENT.
The element that an atom is is determined by the number of protons. The number of electrons can be changed (creating an ion), and the number of neutrons can be changed (creating an isotope), and as long as the number of protons does not change, the element that the atom is does not change.
Ionic
transmutation
The element is completely changed
The type of atom is now different from what it was. (It has a new identity.)
No, it becomes a different isotope. An element is defined solely by the number of protons.
It says that in your molecule, the element in front of the little 2 occur twice. So in CO2, a carbon-atom occurs once, and the oxygen-atom occurs twice.
if the number of protons changed, the atom would become a different element
Absolutely, this occurs naturally all the time in radioactive decay and in fusion in stars and supernovae as well as artificially in particle accelerators, nuclear reactors, and nuclear bombs.