WorksheetsBohr Models and Lewis Structures
Total questions: 15
Worksheet time: 15mins
Which element is this?
Calcium
Chlorine
Silicon
Potassium
How are electrons arranged in an atom?
In groups of five
In energy levels
By color
By shape
What's a valence electron?
electrons in the second energy level
electrons in the outermost energy level
the atomic number
electrons in the first level
What element is represented in this Bohr Model?
Carbon
Hydrogen
Aluminum
Lithium
What's a valence electron?
electrons in the second energy level
electrons in the outermost energy level
the atomic number
electrons in the first level
How many dots would a Lewis Dot structure of Helium have?
1
2
8
0
According to the octet rule most elements need _______ valence electrons.
2
8
6
18
How many electrons does Si contain? (click to see image)
14
28
2
None of these
What is the maximum number of electrons that can occupy the second energy level in a Bohr model?
2
8
18
32
In a Lewis structure, which element typically has no dots around it?
Helium
Oxygen
Carbon
Nitrogen
Which of the following elements is most likely to form a double bond in a Lewis structure?
Hydrogen
Oxygen
Helium
Sodium
What is the main purpose of using Lewis structures in chemistry?
To predict the color of compounds
To determine the mass of molecules
To visualize the arrangement of electrons in molecules
To calculate the speed of reactions
How many valence electrons does a chlorine atom have, as represented in a Lewis structure?
1
3
5
7
Which of the following is a limitation of the Bohr model?
It cannot explain the spectra of multi-electron atoms
It accurately predicts chemical bonding
It describes electron clouds
It is based on quantum mechanics
In a Bohr model, what happens to the energy of an electron as it moves to a higher energy level?
It decreases
It remains the same
It increases
It becomes zero
