Week 1 - Welcome!

Topics Unit 1: Reactions are fun

Structure of the atom
Atomic models
Atoms, elements, compounds and mixtures
First 20 elements of the periodic table
Lab equipment
Common compounds
Word equations to describe common reactions
Chemical bonds
Introduction to reactions

Class 1

During the first class we will have an ice breaker and we will discuss the lab rules we need to take into account in class:

Atoms make up everything we see, and many things we don't see too, like air.

In previous years we have studied the main

parts of the atom, how these contribute to the

characteristics of the element, and how it

interacts with other elements. Today we will

review the atom structure and will practice by

drawing and identifying the number of particles

in the atoms of different elements.

Let's start by watching a video:

Classwork - Atom structure

1. Go to this website and launch the simulation from the first window that appears in the site: (write one conclusion in your notebook)

PBS LEARNING

2. Use the information from the periodic table to complete this for the first 5 elements :

Element:

Symbol:

# P:

# e-:

# N:

Atomic mass (A): #P + #N :

Drawing:

Note: Open Ptable to see the symbols of the first 5 atoms and the file to see the number of neutrons.

Class 2