Equal to the number of protons that are present in the nucleus of its atoms.
What is the atomic number?
100
Carbohydrates, lipids, and proteins.
What are the main types of organic compounds?
100
A mixture formed when one substance dissolves in another.
What is a solution?
100
Chemical substance capable of donating a hydrogen ion.
What is an acid?
100
A positively charged ion.
What is a cation?
200
The science that deals with the composition and properties of matter.
What is chemistry?
200
Negatively charged particle.
What is an electron?
200
Positively charged particles.
What is a proton?
200
Elements that are alike in their number of protons and electrons, but differ in their atomic weight because of their differing numbers of neutrons in the nucleus.
What is an isotope?
200
A water based solution.
What is an aqueous solution?
300
An atom that has acquired a positive or negative charge.
What is an ion?
300
Compounds formed by ionic bonds that release ions when they are in solution.
What are electrolytes?
300
Chemical compounds that characterize living things and built mainly out of the element carbon.
What are organic compounds?
300
A negatively charged ion.
What is an anion?
300
Type of bond that involves the sharing of electrons between atoms.
What is a covalent bond?
400
The byproducts of a reaction between an acid and a base.
What are salt and water?
400
The smallest units of elements.
What is an atom?
400
Type of bond formed when electrons are transferred form one atom to another.
What is an ionic bond?
400
The substance dissolved in a solution.
What is the solvent?
400
Scale used to determine relative concentrations of hydrogen and hydroxide ions.
What is the pH scale?
500
Non-charged particles.
What is a neutron?
500
A chemical substance, usually containing a hydroxyl ion, that can accept a hydrogen ion.
What is a base?
500
Any substance composed of two or more different elements.
What is a compound?
500
A class of organic compounds that contain a nitrogenous base, a sugar, and a phosphate group.