Valence Electrons
Ionic Bonds
Covalent Bonds / Oxidation Numbers
Metallic Bonds
Types of Bonds
100
Where are valence electrons found in an atom?
The outermost energy level
100
What happens to the electrons in an ionic bond?
They are transferred: either gained or lost by atoms.
100
What happens to electrons in a covalent bond?
They are shared
100
A sea of mobile electrons is characteristic of this kind of bond.
Metallic
100
This type of bond forms between metals.
Metallic bond
200
Will sodium (Na) gain or lose it's single valence electron when forming compounds?
Lose
200
What is the process of removing electrons and forming ions called?
Ionization
200
Give an example of two nonmetals that would form a covalent bond.
(various answers)
200
Is a metallic bond strong or weak?
Very strong
200
This type of bond forms between a metal and a nonmetal.
Ionic bond
300
How many valance electrons does bromine (Br) have?
7
300
What do we call a regular repeating arrangement of atoms in an ionic compound?
Crystal lattice
300
How many valence electrons in an atom with an oxidation number of 2- ?
6
300
What do we call metals that can be drawn into thin wires?
Ductile
300
What type of bond would form between two sulfur atoms
Covalent
400
How many valence electrons does neon (Ne) have?
8
400
What do we call the energy needed for ionization (forming ions)?
Ionization energy
400
What is the oxidation number of sodium (Na)?
1+
400
What does the word "malleable" mean?
Can be hammered into thin sheets without breaking.
400
This type of bond forms between two nonmetals.
Covalent bond
500
Describe what happens to valence electrons in a metallic bond.
They are free-flowing and are all attracted to the positive nuclei of the metals at the same time.
500
What do we call the tendency of an atom to attract electrons?
Electron affinity
500
Name the 7 atoms that are commonly found in nature as DIATOMIC ELEMENTS.
H O F Br I N Cl
500
Describe three physical properties of metals that are a result of the "sea of electrons" that are characteristic of a metallic bond.
Good conductors of heat and electricity High melting point Malleable Ductile
500
This type of bond exists between the atoms of a polyatomic ion.
Covalent
M
e
n
u