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- 1. Multiple Choice
Which of these statements about a negative ion is true?
Remember: electrons are negative, protons are positive, neutrons are neutral
It has an equal number of protons and electrons
It has more protons than electrons
It has more electrons than protons
- 2. Multiple Choice
What happens when sodium and chlorine atoms form sodium chloride?
Remember: sodium is a metal and chlorine is a non-metal
An electron transfers from each sodium atom to each chlorine atom
An electron transfers from each chlorine atom to each sodium atom
Sodium and chlorine atoms share electrons
- 3. Multiple Choice
What is a covalent bond?
A bond formed between oppositely charged ions
A bond formed when two atoms share a pair of electrons
A bond formed by delocalised electrons
- 4. Multiple Choice
In a dot and cross diagram, what does each dot and cross represent?
A neutron
A proton
An electron
- 5. Multiple Choice
What is the greatest number of covalent bonds that one carbon atom can form?
Hint - how many outer electrons does carbon have?
2
3
4
- 6. Multiple Choice
What combination of elements will form covalent bonds?
Metal atom and another metal atom
Metal atom and non-metal atom
Non-metal atom and another non-metal atom
- 7. Multiple Choice
Which of the following pairs of elements would join together with ionic bonding?
Iron and sulfur
Iron and chromium
Hydrogen and sulfur
- 8. Multiple Choice
Which type of bonding results from the electrostatic force of attraction between positively and negatively charged ions?
Metallic bonding
Ionic bonding
Covalent bonding
- 9. Multiple Choice
How is the covalent bond held together?
Electrostatic attraction between each nuclei and the shared electrons between them
Electrostatic attraction between positive and negative ions
Static attraction between nuclei and protons
- 10. Multiple Choice
What does a metallic bond consist of?
Forces between metal ions and delocalised electrons
Pairs of metal atoms joined together by strong bonds
Forces between oppositely charged metal ions
- 11. Multiple Choice
Why are most metals ductile?
Because the metal ions are arranged in layers
Because the metal ions are closely packed
Because the metal can conduct electricity
- 12. Multiple Choice
How do metal atoms form ions?
They lose electrons to form negative ions
They gain electrons to form positive ions
They lose electrons to form positive ions
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