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WorksheetsStructure and bonding
Total questions: 30
Worksheet time: 19mins
Of the 3 states (solid, liquid, gas), which state has the highest energy?
Solid
Liquid
Gas
Of the 3 states (solid, liquid, gas), which state will be the coldest?
Solid
Liquid
Gas
In which state are atoms densely packed, but able to move?
Solid
Liquid
Gas
What is the flow of electricity?
The movement of charged particles
Densely packed electrons
The creation of ions
How does electricity flow through a substance (like graphite, or metals)?
The electrons are de-localised
The substance has a lot of energy
The electrons are locked in bonds
Mg is in Group 2 on the periodic table. How many electrons will it gain or lose during ionic bonding?
Lose 2 electrons
Gain 2 electrons
Lose 1 electron
Gain 1 electron
Oxygen is in Group 6 on the periodic table. How many electrons will it gain or lose during ionic bonding?
Gain 2 electrons
Lose 2 electrons
Gain 1 electron
Lose 1 electron
Lithium is in Group 1. When a Lithium atom undergoes Ionic bonding, what will it become?
An ion with charge 1+
An ion with charge 1-
A molecule
A bigger atom
What is the chemical formula for this dot-cross diagram?
NH3
Nitrogen-Hydrogen
HHHN
Ammonia
What is the chemical formula for this dot-cross diagram?
Cl2
Cl-Cl
Chlorine
What is the chemical formula for this dot-cross diagram?
HCl
Hydrogen-Chlorine
Hydrogen Chloride
H-Cl
What type of bond is this?
Ionic
Covalent
Metallic
What type of bond is this?
Ionic
Covalent
Metallic
What type of bond is this?
Ionic
Covalent
Metallic
What type of bond is this?
Ionic
Covalent
Metallic
Ionic bonding happens between which elements?
Metal and metals
Metals and non-metals
Non-metals and non-metals
Covalent bonding tends to happen between which elements?
Metal and metals
Metals and non-metals
Non-metals and non-metals
What type of structure are these?
Giant covalent
Simple covalent
Giant Ionic lattice
Metallic
What type of structure is this?
Giant covalent
Simple covalent
Giant Ionic lattice
Metallic
Which of these shows graphite?
1
2
3
None
Which of these shows diamond?
1
2
3
None
Which of these shows a fullerene?
1
2
3
None
A compound is:
a substance that contains atoms of two (or more) different elements
a type of molecule
a pure substance
A Magnesium (Group 2) atom bonds with a Chlorine (Group 6) atom. What charge will the Magnesium ion have?
2+
1+
2-
1-
A Magnesium (Group 2) atom bonds with a Chlorine (Group 6) atom. What charge will the Chlorine ion have?
2+
1+
2-
1-
Gases like Oxygen and Nitrogen exist as simple molecules (O2 and N2). They are a gas at room temperature. This means they have: (multiple answers allowed)
Weak inter-molecular forces
Low boiling points
Low melting points
Strong bonds
Diamond is made of a repeating pyramidal structure, composed entirely of Carbon. It has a very high melting point. Why?
It takes a lot of energy to break the strong covalent bonds
Metallic bonds are very strong
It has weak inter-molecular forces
Diamond, Graphite and Silicon Dioxide have very high melting points. Oxygen and Nitrogen have low melting points. However, all of these have covalent bonding. Why the difference?
Simple covalent molecules have weak inter-molecular forces
Giant covalent structures are held together by strong covalent bonds
Oxygen and Nitrogen aren't attracted to other molecules
What is an alloy?
A mix of two (or more) different metallic elements
A mix of two (or more) different non-metallic elements
A long chain molecule
We use alloys because of their improved properties (strength, ductility). Using this picture, provide an explanation for the improved strength of an alloy.
In alloys, the layers cannot slide so easily, because atoms of other elements distort the layers
In pure iron, the layers slide easily, which is good for strength
Variation is good in metals because there will be more variety
