metallic bonding

Question 1

What are delocalised electrons?

Answer 1

Delocalised electrons are electrons that are not associated with a single atom or a single covalent bond, but instead are spread over multiple atoms.

Question 2

True or False: Delocalised electrons can contribute to the stability of a molecule.

Answer 2

True

Question 3

Fill in the blank: Delocalised electrons are commonly found in __________ structures, such as benzene.

Answer 3

aromatic

Question 4

Which of the following molecules contains delocalised electrons? A) Methane B) Benzene C) Water

Answer 4

B) Benzene

Question 5

What is the significance of delocalised electrons in terms of electrical conductivity?

Answer 5

Delocalised electrons allow for the movement of charge, which enhances electrical conductivity in materials like metals and certain organic compounds.

Question 6

What is a positive metal ion?

Answer 6

A positive metal ion, also known as a cation, is an atom that has lost one or more electrons, resulting in a net positive charge.

Question 7

True or False: All metal ions are positive.

Answer 7

False. While most metal ions are cations, there are some elements that can form negative ions (anions) under certain conditions.

Question 8

Fill in the blank: The process of a metal atom losing electrons to form a positive ion is called ______.

Answer 8

ionization

Question 9

Which of the following is an example of a positive metal ion? A) Cl- B) Na+ C) O2-

Answer 9

B) Na+

Question 10

What is a regular layer structure?

Answer 10

A regular layer structure is an arrangement of layers in a material or system that follows a consistent and predictable pattern.

Question 11

True or False: Regular layer structures can only be found in geological formations.

Answer 11

False

Question 12

Which of the following is NOT a characteristic of regular layer structures? A) Consistency B) Randomness C) Predictability

Answer 12

B) Randomness