Bonding is in me.
Why do atoms bond?
To become stable
What is anothername Ionic bonding?
Electrovalent Bonding
Name the three types of chemical bonding.
Ionic,covalent and metallic bonding
NaCl is an ionic comound therfore it has a low melting and boiling point.
TRUE OR FALSE
FALSE
Covalent bonding occurs when ____ share electrons.
Non-metals
Metals atoms tend to_____electrons.
loose.
Ions that are postively charged are called______whereas ions that are negatively charged are called_____.
Cations and Anions
Ions which are formed from one type of atom is termed______.
A monoatomic ion.
Which of the following is not a property of substances with ionic bonding?
A. High melting point
B. Crystallinity
C. Conduct electricity when molten
D. Conduct electricity in the solid state
D. Conduct electricity in the solid state.
The electron sea, allowing electrons to flow freely from one end of a crystal structure to the other
Non-metals tend to____ electrons in ionic bonding.
Gain
Ionic comounds do not conduct electricity.
TRUE OR FALSE
TRUE
Polyatmoic ions are formed from more than one type of atom.What is the most popular polyatomic cation.
AMMONIUM(NH4+)
Which of the following phrases would be used in a description for the bonding in BOTH metals and ionic salts?
a. Strong electrostatic attraction
b. Ions
c. Giant lattice
d. Delocalised electrons
a. Strong electrostatic attraction.
Diamond and graphite are refered to as_________.
Allotropes of Carbon.
If an element is in group 2 this means that the element has___ valence electrons.
TWO
Define the term electronegativity.
Electronegativity is a measure of an atom's ability to attract shared electrons to itself
Identify the metal and non-metal between the ionic comound AlF3.
Al is the metal and F is the non-metal.
Which of the following gives the best explanation for the fact that sodium chloride is crystalline?
A. There is strong electrostatic attraction between oppositely charged ions.
B. It contains a regular 3D arrangement of positive and negative ions.
C. The crystal contains ions.
D. There are free electrons present which reflect the light
B. It contains a regular 3D arrangement of positive and negative ions.
The attractive force that forms ionic bonds
The electrostatic attraction between cations and anions
What is a chemical bond?
A chemical bond is a force of attraction between combiningg atoms
At room temperature ionic compunds exist as_________.
Crystalline solids
The structure normally associated with ionic bonding is ...
A. a giant lattice.
B. a simple molecule.
C. a giant molecule.
D. a regular arrangement of ions surrounded by a sea, or cloud, of electrons.
B. A simple molecule
Which of the following statements gives the best explanation for the high solubility of potassium bromide?
A. The ions are free to move.
B. There are positive and negative ions present in the substance.
C. The positive and negative ions are attracted to different regions of the polar water molecules.
D. Like dissolves like.
C. The positive and negative ions are attracted to different regions of the polar water molecules.
The only cation formed by a polyatomic ion
Ammonium (NH4)+