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WorksheetsMetallic Bonding
Total questions: 11
Worksheet time: 12mins
A _____________ can be defined as the electrostatic forces between the positively charged metal ions and the sea of delocalised electrons.
metallic bond
ionic bond
covalent bond
dative bond
The melting points of iron and chlorine are 1540 °C and -101 °C. Why?
Covalent bonds are stronger than metallic bond
Metallic bonds are stronger than covalent bond
Metallic bonds are stronger than van der Waals forces
Covalent bonds are stronger than van der Waals forces
The structural formulae of three compounds are shown below:
X: H2O
Y: CH3CH2CH2-OH
Z: NH3
Which of the following pairs forms the strongest hydrogen bond?
X and X
Y and Y
X and Z
X and Y
A metallic bond is a bond between __________ .
nonmetals
transition metals
metals
metalloids
Why do metals conduct electricity?
Metals have shiny surface
Metals have tightly held electrons
Metals have delocalised electron that are able to move
Metals have shared electron between two metal ions
Which of the following is NOT a property of metals?
Hard
Can conduct electricity
Very brittle (breaks easily)
Malleable (can bend without breaking)
What is meant by the term "sea of electrons"?
It is the free floating electrons in a metal.
It is the electrons that are floating in a liquid.
It is the total number of electrons in a metal atom.
It is the total number of electrons in the sea.
Why are metals good conductors of electricity?
The electric current can easily travel along the surface of the metal because it is smooth.
A negative charge can easily push the sea of electrons in one direction, making a current.
Metals attract electricity.
Metals are can be easily bend without breaking.
Why are metals malleable? (They can bend without breaking)
Metals are very smooth.
Metals have a sea of electrons.
The sea of electrons from a strong metallic bond.
Even though the metal ions repel each other, the electron sea holds all the atoms in place.
Which of the following elements possesses the strongest metallic bond?
Sodium
Potassium
Magnesium
Calcium
The melting point of Z is 1875°C and R is a good conductor. What type of bonding is found in Z?
Hydrogen bond
Ionic bond
Metallic bond
Van der Waals forces
