2006-06-15 11:51:47 · 7 answers · asked by Eduardo G 1 in Science & Mathematics ➔ Chemistry
A monoatomic ion (as opposed to a polyatomic ion) is an ion consisting of only a single atom which has either gained or lost an electron.
Some examples would be:
Na+, Chloride Cl-, Fe+3, O-2, Ca+2,.....
By comparison, a polyatomic ion is an ion which is made up of more than one atom with an imbalance in the charge.
For example, some common polyatomic ions are:
Ammonium NH+, Acetate, C2H3O2-, Chlorate ClO4-, Nitrate NO3-, ....
The atoms of a polyatomic ion are bonded covalently together, but have fewer/more electrons than would normally be in the molecule, giving the entire thing a positive or negative charge.
These ions (mono- or poly-) will ionicly bond [a very strong type of bonding] with other ions to form a neutral ionic compound.
For example:
Na+ and Cl- for NaCl
NH4+ and NO3- form NH4NO3, .....
2006-06-15 12:09:49 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
An ion that has only one atom, like the chloride ion.
2006-06-16 05:38:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋
An ion consisting of only one atom.
2006-06-15 18:55:04 · answer #3 · answered by drkslvr8 3 · 0⤊ 0⤋
an ionized atom of a single element, such as F-, Ca+2
2006-06-15 18:59:08 · answer #4 · answered by Maria 2 · 0⤊ 0⤋
an ato that only has one ion. for example hydrogen H +
2006-06-15 18:57:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋
a single atom i.e. in a monotomic gas the atoms are not bound together
2006-06-15 18:56:11 · answer #6 · answered by ♫ ♫ 4 · 0⤊ 0⤋
I will go with mrjeffy321 answer.
2006-06-15 23:40:13 · answer #7 · answered by Alchemist 2 · 0⤊ 0⤋