Mapping the PT
The Atom
Rules of the Game
100

A metal in group 1A.

What is an Alkali Metal?

100

A positively charged sub-atomic particle.

What is a Proton?

100

The ratio of the number of a certain item divided by the total number of items.

What is proportion?

200

A metal in group 2 A.

What is an Alkaline Earth Metal

200

A negatively charged sub-atomic particle.

What is an electron?

200

The composition of a compound is fixed.

What is the law of definite proportion?

300

An element of group 17 or 7A

What is a Halogen?

300

A neutral sub-atomic particle.

What is a neutron?

400

One column of the Periodic Table, these elements share properties. 

What is a group/family?

400

The core of an atom.

What is the nucleus?

500

One row of the periodic table.

What is a Period?

500

Spaces inhabited by electrons around the nucleus.

What are orbitals?

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