WorksheetsBohr Diagrams
Total questions: 20
Worksheet time: 10mins
What's a valence electron?
electrons in the second orbital
electrons in the outermost shell of an atom
the atomic number
electrons in the first energy level
This Bohr diagram shows 3 orbits (shells) with electrons. To which row of the Periodic Table does it belong?
1
2
3
4
Which row of the Periodic Table must this element come from?
1
2
3
4
How many electrons total?
5
6
7
8
How many valence electrons?
2
3
4
5
Which period is this element in?
1
2
3
4
Which element would be in group 16?
V
W
X
Y
Z
Which element would be in group 2?
V
W
X
Y
Z
This could be the dot diagram of
Mg
Cl
C
O
How many valence (outer) electrons does an Oxygen atom have?
2
6
8
16
A __________ is a subatomic particle with a negative charge.
proton
neutron
electron
nucleus
___________ simplify the Bohr Model by showing only the outer valence electrons used for bonding.
Lewis Dot Diagrams
Bohr Models
Electron Clouds
Periodic Tables
Name this element.
boron
sodium
magnesium
lithium
beryllium
