Second Chemistry Quiz

A substance that cannot be split into anything simpler.

• An element

• A molecule

• A compound

All elements are made up of particles called ..........................

• ions

• atoms

• compounds

An atom is the smallest part of an element that can exist, with a diameter of about ..................................

• 0.000 000 01 nm.

• 0.000 000 01 dm.

• 0.000 000 01 cm.

An element can be broken down into simpler substances by heating.

• True

• False

Every element has its own type of atom.

• True

• False

Each element has its own two chemical symbols.

• True

• False

The symbol of a silvery-white element that is used as jewellery and is very attractive.

• Pt

• Ta

• P

• Pa

• Tp

The symbol of an element used in capacitors that store electrical energy in cell phones and computers

• Cl

• Ta

• Al

• C

• Ar

The symbol of an element used in catalytic converters that reduces pollution from cars.

• N

• Ta

• Be

• Li

• Pt

The symbol S represent the element......................

• Sulfur

• Sodium

• Selenium

• Silicon