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Bonding (Grade 10)

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Bonding

1. 
How are bonds formed?
  1. By the attraction between the electrons of two atoms.
  2. By the attraction between the nuclei of two atoms.
  3. By the attraction between the nucleus of an atom and the electrons of another atom.
  4. By the attraction between the electrons of one atom and the neutrons of another atom.
 
2. 
Which statement is true about the formation of a bond?
  1. Forming a bond makes the system less stable.
  2. Forming a bond makes the system more stable.
  3. Forming a bond does not affect the stability.
  4. Forming a bond only affects the stability for certain bonds.
3. 
What happens to the stability of a system as a bond breaks apart?
  1. The system becomes more stable.
  2. The system becomes less stable.
  3. The stability depends on the bond involved.
  4. The stability is not affected by the formation or breaking of a bond.
 
4. 
Which term correctly describes the ability of an element to attract electrons towards itself in a bond?
  1. second ionization energy
  2. ionic radius
  3. metallic character
  4. electronegativity
5. 
What accounts for the attractions in a chemical bond?
  1. The fact that the nucleus is neutral, while the electrons are negative
  2. The fact that the nucleus is negative, while the electrons are positive
  3. The fact that the nucleus is neutral, while the electrons are positive
  4. The fact that there are protons in the nucleus, while the electrons surrounding the nucleus are negative
 
6. 
What happens as the atoms in a molecule of fluorine come closer together?
  1. The forces of attraction between the atoms become weaker, while the forces of repulsion between the atoms become stronger.
  2. The forces of repulsion between the atoms become weaker, while the forces of attraction between the atoms become stronger.
  3. The forces of repulsion and the forces of attraction become stronger.
  4. The forces of repulsion balance out the forces of attraction.
7. 
What happens as an atom of hydrogen and an atom of chlorine combine to become hydrogen chloride?
  1. A bond is formed as energy is absorbed.
  2. A bond is formed as energy is released.
  3. A bond is broken as energy is absorbed.
  4. A bond is broken as energy is released.
 
8. 
What occurs when HBr breaks down to form an H atom and a Br atom?
  1. Energy is absorbed.
  2. Energy is released.
  3. Energy is created.
  4. Matter is destroyed.
9. 
Given the balanced equation representing a reaction:

[math]"F" + "F" to "F"_2 [/math]

Explain how the bond is being formed.



 
10. 
The type of energy that is stored in a chemical bond is known as                          energy.
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