BIOL 1406- Chemistry

Select all that apply: What are the sub-atomic particles found in the nucleus?

• Electrons

• Protons

• Neutrons

• Elements

Select all that apply: Which of the following are NOT the 4 most common elements in living things?

• Oxygen

• Carbon

• Helium

• Nickel

What is NOT an example of a compound?

• Water

• Carbon Dioxide

• Iodine

• Carbon Monoxide

A neutral atom has...

• The same number of neutrons as protons

• The same number of electrons as protons

• The same number of electrons and neutrons

• either gained or lost and electron

The atomic mass is...

• The number of electrons + the number of protons in the nucleus

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The number of neutrons + the number of protons in the nucleus

True or False: The number of electrons the first energy shell can hold is 8 electrons.

• True

• False

Select all that apply: Covalent bonds are

• The strongest atomic bonds known

• Easily disrupted by water

• Are always non-polar

• Formed by the sharing of electrons between 2 or more atoms

Valence Electrons are electrons in the

• 3rd electron shell

• 1st electron shell

• the outermost electron shell

True or False: Ionic bonds form salts

• True

• False

When electrons are shared equally between the atoms involved they are

• Polar covalent bonds

• Non-polar covalent bonds

• Non-polar ionic bonds

• Polar ionic bonds