Ions Flashcards
(7 cards)
0
Q
How do atoms become ions?
A
An atom has to have an incomplete outer shell. In chemical reactions they gain or lose electrons and become ions.
1
Q
What is the definition of an ion?
A
An atom or group of atoms with a positive or negative charge.
2
Q
How does an atom become a cation?
A
Metal atoms lose electrons to become positively charged ions.
3
Q
How does an atom become an anion?
A
Non-metal atoms gain electrons to form negatively charged ions.
4
Q
What is this: Cl- ?
A
A chloride atom that carries a single negative charge.
5
Q
What is this: Na+ ?
A
A sodium ion that carries a single positive charge.
6
Q
Chlorine is in Group 7 of the Periodic Table. How many electrons does it have?
A
7.
