w3 11-20

Question 1

atom

Answer 1

the basic unit of matter

Question 2

proton

Answer 2

the positively charged particle found in the nucleus of an atom.

Question 3

neutron

Answer 3

the particle with no charge found in the nucleus of an atom.

Question 4

electron

Answer 4

the negatively charged particle found outside the nucleus of an atom.

Question 5

molecule

Answer 5

A group of atoms bonded together forming the smallest fundamental unit of a pure substance.

Question 6

isotopes

Answer 6

atoms of the same element with different numbers of neutrons.

Question 7

chemical bonding

Answer 7

an attraction between two or more atoms resulting in the

formation of different chemical substances

Question 8

chemical reaction

Answer 8

changes in chemical substances involving bond breaking

and/or bond forming resulting in different chemical substances

Question 9

ion

Answer 9

a positively or negatively charged atom.

Question 10

ionic bond

Answer 10

formed when one or more electrons are transferred from one atom to
another.