Ch 3

Question 1

Reactivity of atoms

Answer 1

-Atoms that have a full outer shell are unreactive and are likely to remain the same
-Atoms that do not have a full valance shell will react and form chemical bonds with other atoms to do this

Question 2

Ionic bonding

Answer 2

-Takes place between metals and nonmetals
-Metal gives away electrons to non-metals who receive the electrons
-The metal then becomes a cation, the nonmetal becomes an anion.
-positive ions and negative ions attract which form an ionic bond

Question 3

covalent bonding

Answer 3

-take place between 2 non metals
-Metals with less then 4 electrons are both unwilling to give away electrons
-Instead they share their electrons together to form a covalent bond
-No electrons leave their original atom so no ions are formed

Question 4

Metallic bonding

Answer 4

-Takes place between 2 metals
-Metals with less than 4 electrons lose electrons easily
-Metals don’t chemically react with other metals, because all metals form positive ions
-Between atoms of the same element, all atoms lose their electrons to form a sea of free electrons.