WorksheetsMetallic Bonding
Total questions: 10
Worksheet time: 8mins
Metal ions always have a (a) charge.
Electrons have a (a) charge.
In a metallic bond the electrons are free to move around. They are called...
disappeared electrons
delocalised electrons
dissipated electrons
diverted electrons
There are strong electrostatic forces between the electrons and the metal ions in a metallic bond.
True
False
Select the correct properties of metals.
Malleable
Most are solid at room temperature
Bad conductors of heat
Good conductors of electricity
Why are most metals solid at room temperature?
The charges on the electrons and the metal ions cancel each other out.
The delocalised electrons help to transfer heat.
It requires a lot of energy to overcome the electrostatic forces of attraction.
It requires little energy to overcome the electrostatic forces of attraction.
Which part of a metallic bond helps to transfer heat and electricity more efficiently?
(a)
What does malleable mean?
They make a sound when hit.
They can be bent into different shapes without breaking.
They are good conductors.
They melt at very high temperatures.
What is the name of a substance that is a mixture of two or more metals, or a metal and another element?
(a)
Alloys are harder than pure metals. Why is this?
In alloys, different sized atoms distort the rows meaning they cannot slide over each other easily.
A mixture of atoms means that there is a ranged melting point.
Alloys have fewer delocalised electrons than pure metals.
The charges of the electrons and the ions in an alloy cancel each other out.
