Ionic and Covalent Bonding (Chemical Compounds)
Ionic and Covalent Bonding (Chemical Compounds)
_______________ – an atom that becomes
_______________ – an atom that becomes
electrically charged by gaining or losing an
electrically charged by gaining or losing an
electron.
electron.
 When an atom _______________ an
 When an atom _______________ an
electron it loses a negative charge and becomes a
electron it loses a negative charge and becomes a
_______________ ion.
_______________ ion.
 When an atom _______________ an
 When an atom _______________ an
electron it gains a negative charge and becomes a
electron it gains a negative charge and becomes a
_______________ ion.
_______________ ion.
Metals and Nonmetal
Metals and Nonmetal
 _______________ tend to lose electrons
 _______________ tend to lose electrons
in chemical reactions, forming positive ions.
in chemical reactions, forming positive ions.
 _______________ tend to gain electrons
 _______________ tend to gain electrons
in chemical reactions, forming negative ions.
in chemical reactions, forming negative ions.
______________ __________ – The attraction between two
______________ __________ – The attraction between two
oppositely charged ions.
oppositely charged ions.
 When a metallic element reacts with a nonmetallic element,
 When a metallic element reacts with a nonmetallic element,
their atoms gain and lose electrons respectively, forming
their atoms gain and lose electrons respectively, forming
ionic bonds
ionic bonds
Gaining or losing neutrons makes an atom an ______________.
Gaining or losing neutrons makes an atom an ______________.
 However, gaining or losing a _______________ makes an
 However, gaining or losing a _______________ makes an
atom into a completely different element.
atom into a completely different element.
________________ __________ – A bond formed when two
________________ __________ – A bond formed when two
atoms share electrons.
atoms share electrons.
 Both atoms attract the two shared electrons at the same
 Both atoms attract the two shared electrons at the same
time.
 Generally, when two _______________ react, atoms share
electrons, forming covalent (molecular) bonds.
time.
 Generally, when two _______________ react, atoms share
electrons, forming covalent (molecular) bonds.