Elements and Compounds Quiz

What are the three parts of an atom?

• Quarks, Leptons, Bosons

• Nucleus, Electrons, Isotopes

• Protons, Neutrons, Electrons

• Ions, Molecules, Compounds

How many elements are present in the periodic table?

• 120

• 118

• 112

• 115

What is formed when two different elements combine?

• A mixture

• A compound

• A solution

• An alloy

What type of substance is water (H2O)?

• An element

• A metalloid

• A compound

• A mixture

What is the composition of compounds?

• Single type of atom

• Two or more types of molecules

• Two or more types of atoms

• Two or more types of metalloids

Can elements be broken down into a simpler form?

• Yes, by physical means

• Yes, by chemical means

• Yes, by nuclear reactions only

• No

Which of the following is a metalloid?

• Oxygen

• Silicon

• Gold

• Sodium

Which of the following is a non-metal?

• Copper

• Boron

• Iron

• Nitrogen

What is rust chemically known as?

• Sodium Chloride

• Hydrogen Peroxide

• Carbon Dioxide

• Iron Oxide

Is sulfur an element or a compound?

• Compound

• Mixture

• Element

• Metalloid