Classifying Bonds
What type of bond is this: Li2O?
Ionic
What type(s) of elements makes a bond covalent?
Non-metal only
What type(s) of elements make a bond Ionic?
Metal and non-metal
What type(s) of elements makes a bond metallic?
Only metal
What are the rows and columns of the periodic table called?
Rows are periods; columns are groups or families.
What are valence electrons?
Electrons in an atom’s outermost occupied energy level.
What type of bond is this: PCl2?
Covalent
Do covalent bonds conduct electricity? If so, how?
No they do not conduct electricity
Do Ionic bonds conduct electricity? If so, when?
Yes, when dissolved
Do metallic bonds conduct electricity? If so, when?
Yes, in all forms
Which family contains highly reactive metals with one valence electron?
Alkali metals, Group 1 (excluding hydrogen)
An atom loses electrons. What type of ion does it become, and what is its charge?
A cation with a positive charge.
What type of bond is this: Ca2Fl?
Metallic
What happens to electrons in a covalent bond?
They are tightly shared
What happens to electrons in an ionic bond?
They transfer electrons
What happens to electrons in a metallic bond?
They are loosely shared
Which family contains highly reactive nonmetals with seven valence electrons?
Halogens, Group 17.
How does magnesium form its most common ion?
It loses two electrons to become Mg²⁺
What type of bond is this: Be3Bi2?
Metallic
Do you use prefixes when naming covalent compounds?
Yes you do use prefixes when naming Covalent compounds
Do you use prefixes when naming ionic compounds?
No, you do not use prefixes when naming ionic compounds
Why are noble gases usually unreactive?
Their outermost electron energy level is full.
How does chlorine form its most common ion?
It gains one electron to become Cl⁻.
What type of bond is this: K3N?
Ionic
What are some characteristics of covalent bonds? (Name 3)
Can't conduct electricity, has low melting and boiling points, malleable, dissolves poorly in water
What are some characteristics of ionic bonds? (Name 3)
Conducts electricity when dissolved, high melting and boiling points, breaks easily or brittle
What are some characteristics of metallic bonds? (Name 3)
Conducts electricity, high melting and boiling points, malleable, luster
Calcium is in Group 2 and Period 4. Identify its family, number of valence electrons, and number of occupied energy levels.
Alkaline earth metals; two valence electrons; four occupied energy levels.
Oxygen has six valence electrons. How many electrons does it gain to fill its outer level, and what ion forms?
It gains two electrons, forming O²⁻.