chem vocab

Question 1

Isotope

Answer 1

Atoms with the same number of protons but different numbers of neutrons

Question 2

electron

Answer 2

a subatomic particle with a single negative electrical charge; found orbiting around the nucleus of an atom

Question 3

neutron

Answer 3

a subatomic particle with no electrical charge; found in the nucleus of an atom

Question 4

element

Answer 4

a substance made up of only one type of atom, each with the same number of protons

Question 5

molecule

Answer 5

two or more atoms connected by chemical bonds, which form the smallest unit of a substance that retains the composition and properties of that substance

Question 6

atomic number

Answer 6

the number of protons in the nucleus of each atom of that element.

Question 7

atomic mass

Answer 7

the quantity of matter contained in an atom of an element.

Question 8

nucleus

Answer 8

an atom’s central core, containing protons and
neutrons

Question 9

atom

Answer 9

The smallest part of a substance that cannot be broken down chemically

Question 10

proton

Answer 10

a subatomic particle with a positive electric charge.

Question 11

compound

Answer 11

a material formed by chemically bonding two or more chemical elements

Question 12

solvent

Answer 12

any substance, usually liquid, which is capable of dissolving one or several substances, thus creating a solution

Question 13

mixture

Answer 13

a compound made up of two or more chemical components that are not chemically linked

Question 14

solution

Answer 14

a type of mixture involving two or more substances.

Question 15

solute

Answer 15

a substance that is dissolved in a solution

Question 16

covalent bond

Answer 16

a chemical bond that involves the sharing of electrons to form electron pairs between atoms

Question 17

ionic bond

Answer 17

a chemical bond formed when one atom gives up one or more electrons to another atom

Question 18

cation

Answer 18

Cations have one or more positive charges attached to them

Question 19

ion

Answer 19

an atom or group of atoms that has an electric charge

Question 20

anion

Answer 20

An anion is a molecule or a group of molecules with one or more negative electric charges.