Lewis & Structual Diagrams & ions Flashcards
0
Q
Define cation
A
When an atom loses an electron and has a POSITIVE charge
1
Q
When do you use Lewis dot diagrams or structural diagrams
A
Lewis= ionic compounds Structural= molecular compounds
2
Q
Define anion
A
When an atom gains an electron and has a NEGATIVE charge
3
Q
Do atoms tend to gain or lose protons
A
Neither, protons are in the nucleus. Only electrons can move
4
Q
Why do atoms form ions
A
To gain a full outer shell or to become stable
5
Q
Non metals tend to…
Metals tend to …
A
Non metals tend to gain electrons
Metals tend to lose electrons
Therefore non metal ions are negative and metal ions are positive
6
Q
What are ions
A
Charged particles ( lost or gained electrons)
7
Q
What is the octet rule
A
Full valence shells are very stable configurations ( Electrons are lost or gained according to witch more easily results in a full valence shell)
