Ch.2 Biochemistry terms quiz

The smallest unit of matter with its own unique individual properties is........

• atom

• proton

• neutron

• molecule

This sub-atomic particle is positively charged and can be found in the nucleus of an atom. It's the _______.

• electron

• proton

• neutron

• atom

The smallest sub-atomic particle is the ___________, which constantly orbits the nucleus of the atom.

• proton

• neutron

• electron

• Jimmy Neutron

The "undefined region" around the nucleus of the atom where electrons are found is the ________________.

• reaction zone

• electron cloud

• inter-molecular force field

• compound bubble

Which image below would be classified as a compound?

• 
• 
• 

The forces that hold atoms ‘within molecules’ together are known as _________.

• intramolecular forces

• van der waal forces

• electrostatic force

• Avenger forces

Atoms of the same element with differing number of neutrons (which makes them slightly more or less massive) are called ______.

• ions

• polar

• isotopes

• non-polar

Looking at this image from the Periodic Table, the number 8 tells you the number of _______ in an atom of Oxygen.

• protons only

• electrons only

• protons as well as electrons.

• neutrons only

What is the atomic mass of an atom of Oxygen?

• 8

• 15.0

• 16.0

• 24.0

What type of chemical bond is formed from atoms exchanging (not sharing) electrons between each other?

• covalent bond

• ionic bond

• metallic bond

• James bond