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Copy of Ions and Isotopes
Transcript of Copy of Ions and Isotopes
are NOT the same
Ions and Isotopes
are formed when an atom
one or more electrons.
This often occurs during a
when compounds are formed.
How to write an ion
If you have a negative Ion it is written with a negative sign following the element symbol.
Ex: Oxygen =
We call these
If it is positive it looks like this
We call these
Remember in an ion if you are adding electrons you are making an atom
So what is an isotope?
Atoms of the same
can have different numbers of
This creates different versions of that
For example, the most common isotope of hydrogen has no neutrons at all; there's also a hydrogen isotope called deuterium, with one neutron, and another, tritium, with two neutrons.
Are there an unlimited number of isotopes?
; there are "
" combinations of neutrons and protons.
I'm not sure what you mean by "unstable." Do atoms just fall apart if they don't have the right number of neutrons?
Unstable atoms are
: their nuclei change or decay by
spitting out radiation,
in the form of particles or e
Other examples of Isotopes....
Now lets review and practice!
How do you write out isotopes?
- The most common way is
- Another way includes
You no longer have an atom you have an ion.
- This is because your atom now has a
- Always going to be
The only subatomic particle that changes
in an isotope is the
# of neutrons
When the number of
changes so does the
Atoms with a few too many neutrons, or not quite enough, can sometimes exist for a while, but they're
and decay quickly.