2.1 and 2.2, atoms elements compounds and atomic structure

Front

Describe the structure of the atom.

Back

A central nucleus containing neutrons and protons surrounded by electrons in shells.

Front

State the relative charges of a proton, neutron, and electron.

Back

Proton: +1, Neutron: 0, Electron: -1.

Front

Define proton number / atomic number.

Back

The number of protons in the nucleus of an atom.

Front

Define mass number / nucleon number.

Back

The total number of protons and neutrons in the nucleus of an atom.

Front

State the electronic configuration of elements with proton number 13.

Back

2,8,3

Front

What do Group VIII noble gases have?

Back

A full outer shell.

Front

How is the number of outer shell electrons related to group number in Groups I to VII?

Back

The number of outer shell electrons is equal to the group number.

Front

How is the number of occupied electron shells related to the period number?

Back

The number of occupied electron shells is equal to the period number.

Front

Define "Element"

Back

A pure substance that cannot be broken down into 2 or more simpler substance by chemical processes, made of one type of atom only

Front

Define "Compound"

Back

A substance made of 2 or more different elements that are chemically combined in a fixed ratio