Bonding (Grade 10)
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Bonding
1.
How are bonds formed?
- By the attraction between the electrons of two atoms.
- By the attraction between the nuclei of two atoms.
- By the attraction between the nucleus of an atom and the electrons of another atom.
- 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?
- Forming a bond makes the system less stable.
- Forming a bond makes the system more stable.
- Forming a bond does not affect the stability.
- Forming a bond only affects the stability for certain bonds.
3.
What happens to the stability of a system as a bond breaks apart?
- The system becomes more stable.
- The system becomes less stable.
- The stability depends on the bond involved.
- 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?
- second ionization energy
- ionic radius
- metallic character
- electronegativity
5.
What accounts for the attractions in a chemical bond?
- The fact that the nucleus is neutral, while the electrons are negative
- The fact that the nucleus is negative, while the electrons are positive
- The fact that the nucleus is neutral, while the electrons are positive
- 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?
- The forces of attraction between the atoms become weaker, while the forces of repulsion between the atoms become stronger.
- The forces of repulsion between the atoms become weaker, while the forces of attraction between the atoms become stronger.
- The forces of repulsion and the forces of attraction become stronger.
- 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?
- A bond is formed as energy is absorbed.
- A bond is formed as energy is released.
- A bond is broken as energy is absorbed.
- A bond is broken as energy is released.
8.
What occurs when HBr breaks down to form an H atom and a Br atom?
- Energy is absorbed.
- Energy is released.
- Energy is created.
- 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.
[math]"F" + "F" to "F"_2 [/math]
Explain how the bond is being formed.
10.
The type of energy typically found to be stored in a bond between atoms is known as energy.
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