Learning Intentions
- To learn how to draw Bohr diagrams and Lewis dot structures of atoms
Part 1 - Bohr Model Diagrams and Lewis Dot Structures
Bohr Model and Lewis Dot Structures (2:46)
Niels Bohr won the Nobel prize in Physics in 1922 for his work on the structure of the atom.
As a class, draw Bohr model diagrams and Lewis dot structures for the following elements:
- Lithium
- Oxygen
- Sodium
Alkali Metals in Water (2:21)
A pound of sodium metal in the river (0:27)
Part 2 - Questions
Using the Internet and your prior knowledge, find answers to the following questions:
- What are valence electrons?
- What is the maximum number of electrons that can be placed in each shell?
- First shell:
- Second shell:
- Third shell:
- What is the term for a column in the periodic table?
- What is the term for a row in the periodic table?
- Draw the Bohr model diagram and Lewis dot structure for each of the following elements:
- Berylium
- Nitrogen
- Argon
- Phosphorus
- Silicon
- Carbon
- Calcium
- Potassium
- Fluorine
- Helium
- In terms of electrons, what do elements in the same column of the periodic table have in common?
- In terms of electrons, what do elements in the same row of the periodic table have in common?
- A covalent bond occurs between what two types of elements?
- Why is a covalent bond stronger than an ionic bond?