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WorksheetsValence Electrons and Electron Dot Diagrams
Total questions: 16
Worksheet time: 32mins
Valence electrons are the
outer most electrons in an atom
total electrons in an atom
The _____ the element is in determines the number of valence electrons it has.
period/row
group/column
This could be the dot diagram of
Mg
Cl
C
O
This is a correct dot diagram for nitrogen (N)
true
false
This is a correct dot diagram for neon (Ne)
true
false
This could be the dot diagram for...
He
Al
Be
Si
Which of these is correct?
USE THE PERIODIC TABLE
How many valence electrons does Phosphorus have?
31
5
15
4
How many valence electrons does Hydrogen have?
4
1
8
2
How many valence electrons should Magnesium have in its electron dot diagram?
1
2
3
4
How many valence electrons does potassium have?
19
6
39
1
How many valence electrons does Carbon have?
4
6
14
12
What is the "magic number" of valence electrons for atoms to be stable?
1
2
8
18
Neon is a noble gas because it is stable, nonreactive, and has ___ valence electrons.
1
8
10
4
