Checkup
Copy and complete on notebooks.
Q1. Atoms and molecules are both particles. Explain the difference between them.
Q2. Draw 3 molecules each made of 2 atoms, and 2 molecules each made of 4 atoms.
Use small circles to represent atoms.
Q3. Find the names of the elements represented by the following symbols:
Be, C, Ne, H, Ca
Q4. Some elements have symbols that do not appear to match their names. For example, the symbol for
sodium is Na. Why is this?
………………………………………………………………………………………………………………………………………………………………