Valence Electrons Flashcards
1
Q
What is a valence electron?
A
Electrons found in the outermost energy level of the electron cloud
2
Q
How many valence electrons do MOST atoms wants for stability?
A
8
3
Q
Which atoms do not want the same amount of the valence electrons as the rest? How many do each of these have?
A
H - hydrogen - 2 He - helium - 2 Li - lithium - 2 Be - beryllium - 2 B - boron - 5
4
Q
Which group of atoms is the only stable group and why?
A
Noble gases because they already have full outer energy levels
5
Q
How do atoms achieve stability?
A
By gaining, sharing, or losing electrons
6
Q
What does an electron dot diagram show?
A
Shows valence electrons around an atom
