Ions Flashcards
1
Q
What are they
A
charged particles
they can be single atoms or groups of atoms
2
Q
Negative ions form when
A
atoms gain electrons
3
Q
Positive ions form when
A
atoms loose electrons
4
Q
If 2 electrons are lost what would the charge be
A
2+
5
Q
If 3 electrons are gained what is the charge
A
3-
6
Q
How can you predict the iron forms
A
by the group number
7
Q
Name Group 1,2,3,4,5,6 and 7 number of ions
A
G1- 1+
G2- 2+
G3- 3+
G5- 3-
G6- 2-
G7- 1-
8
Q
Groups 1,2,3 are metals meaning
A
they lose electrons to form positive ions
9
Q
Groups 5,6,7 are non-metals meaning
A
they gain electrons to form negative ions
10
Q
Elements in the same group all have what
A
the same number in the outer shell
