Chemistry in Medical Microbiology

What is the smallest unit of an element?

• atom

• molecule

• cell

• organ

Which subatomic particle has a positive charge?

• photon

• electron

• proton

• neutron

What is the atomic number of carbon?

• 12

• 8

• 2

• 6

What is the pH value of a neutral solution?

• 1

• 7

• 10

• 14

What is the process by which atoms gain or lose electrons?

• oxidation

• reduction

• ionization

• sublimation

What is the main component of organic compounds?

• carbon

• hydrogen

• nitrogen

• oxygen

What is the study of chemical processes within living organisms?

• biology

• physiology

• biochemistry

• chemistry

What type of bond involves the sharing of electrons?

• ionic

• metallic

• covalent

• hydrogen

The number of protons in the nucleus of an atom?

• Isotope

• Atomic mass

• Atomic number

• Element

An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable?

• Lose 1 electron

• Lost 7 electrons

• Gain 1 electron

• Neither gain nor lose any valence electrons