Formation of ions Flashcards
When are ions made?
When electrons leave or are added to an atom
What are ions?
Charged particles
Why are electrons being transferred?
To fill the outer shell
Why do atoms prefer to have a full outer shell?
To become stable
When metals form ions, do they lose or gain electrons?
Lose
What is the charge on the ion, formed from a metal?
Positive
When non metals form ions do they gain or lose electrons?
Gain
The number of electrons lost or gained is the same as what?
The charge on the ion
If electrons are lost, what is the charge?
Positive
Why is the charge on the ion positive, if electrons are lost?
Because there is a greater charge from the protons
Which groups are most likely to form ions?
1, 2, 6, 7
What is another name for positive ions?
Cations
An anion is what?
A negative ion
Which of the groups 1, 2, 6 or 7 form positive ions?
Groups 1 and 2
Group 6 and 7 form what kind of ions?
Negative ions
