SP6b - Inside Atoms

Questions

What are the three subatomic particles within an atom? Draw and label the current accepted model of the atom What is the 'plum pudding' model of the atom?

Inside Atoms

Protons and neutrons are called nucleons - because they are in the nucleus What are the charges on subatomic particles? How heavy do you think they are?

Atom (image/jpeg)

Caption: : Current accepted model of the atom

Using symbols

We can represent subatomic particles using numbers with symbols (look at the Periodic Table) The bigger number is called the mass number The smaller number is called the atomic number

Periodic Table (image/jpeg)

Caption: : Chemical symbol for Carbon on the Periodic Table

How many?

Au (image/gif)

Task

Fill in the table and stick it into your books

Isotopes

Two atoms of the same element always have the same atomic number They can have different mass numbers - what does this mean? Atoms of the same element with different mass numbers are called isotopes

Task

Complete the worksheets