L1

Question 1

What is the matter around you made up of?

Answer 1

Atoms, they are too small to see with the naked eye. Atoms can be defined as a particle of matter which defines a chemical element.

Question 2

How many types of atoms are there?

Answer 2

118.

Question 3

What is the general structure of an atom?

Answer 3

There is the nucleus, the shell(s), the protons, neutrons and the electrons.

Question 4

What are the different types of atoms listed on?

Answer 4

The periodic table.

Question 5

What is a subatomic particle?

Answer 5

A particle of matter even smaller than an atom: protons, neutrons and electrons.

Question 6

On top and below each element in the periodic table there is a number, what do they mean?

Answer 6

The bigger number is always the atomic mass (the protons and neutrons added together) and the smaller number is always the atomic number (the protons, they are always equal to the amount of electrons).

Question 7

What is a group in the periodic table?

Answer 7

A column.

Question 8

What is a period in the periodic table?

Answer 8

A row.

Question 9

What are the rules for electronic structure?

Answer 9

The first shell can only hold 2 electrons and the second and third can hold 8 each.