Acids and Bases
Atomic Structure
Metals
Ions
Periodic Table
100

This scale measures how acidic or alkaline a solution is.

What is the pH scale?

100

This particle has a positive charge.

What is a proton?

100

This is where metals are found on the Periodic Table.

What is the left hand side?

100

An atom that has lost or gained electrons is called this.

What is an ion?
100
This element has the symbol O.

What is oxygen?

200

A substance with a pH greater than 7 is called this.

What is an alkali or a base?

200
These particles are found orbiting the atom.
What are electrons?
200

This property means metals can be drawn into wires.

What is ductile?

200

The reason atoms gain or lose electrons to form ions.

What is to become stable?
200

This group contains helium and neon.

What is group 18 or noble gases?

300

Universal indicator turns this colour in a strong acid.

What is red?

300

The first shell can hold this many electrons.

What is two?

300

Name two physical properties shared by most metals.

What is good conductivity, malleability, ductility, lustre, or high melting point?

300

Oxygen gains this many electrons to form O2-.

What is two?

300

Elements in the same column are called this.

What are groups?

400
The salt produced when sulfuric acid reacts with potassium hydroxide.

What is potassium sulfate?

400

A neutral carbon atom has six protons and this many electrons.

What is six electrons?

400

This property means metals can be hammered into sheets.

What is malleable?

400

Metals in group 18 are unreactive for this reason.

What is they already have full outer shells and are stable?

400

This element has the atomic number 17.


What is chlorine?
500

In a neutralisation reaction, these are the two products formed.

What is a salt and water?
500

The mass number equals the total number of these two particles.

What are protons and neutrons?
500

This property makes copper ideal for electrical wiring.

What is a good electrical conductor?

500

Elements in group 13 of the periodic table form this kind of ion.

What is +3?

500

This element (name one) has two electrons in its outer shell.

What is magnesium, beryllium, calcium etc?