Question detail

What does a dot and cross diagram represent in ionic bonding?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Chemical bonds, ionic, covalent and metallic

Question

A. The arrangement of atoms in a covalent bond
B. The transfer of electrons between metal and non-metal atoms
C. The structure of a metallic lattice
D. The sharing of electron pairs between non-metal atoms

Answer

The correct option is The transfer of electrons between metal and non-metal atoms. This answer is correct because it matches the approved learning objective to draw dot and cross diagrams for ionic compounds formed from Group 1 or Group 2 metals with Group 6 or Group 7 non-metals in the subtopic Ionic bonding.

Explanation

The correct option is The transfer of electrons between metal and non-metal atoms. The transfer of electrons between metal and non-metal atoms is correct because it directly supports the approved learning objective to draw dot and cross diagrams for ionic compounds formed from Group 1 or Group 2 metals with Group 6 or Group 7 non-metals. This belongs to the subtopic Ionic bonding within Chemical bonds, ionic, covalent and metallic, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Ionic bonding.

Common mistake

Misplacing Electrons in Dot and Cross Diagrams

Students often place the electrons incorrectly in dot and cross diagrams, failing to show the correct transfer of electrons from the metal to the non-metal.

To fix this, students should carefully identify which atom is the metal and which is the non-metal, ensuring that the metal atom's outer-shell electrons are shown as crosses and the non-metal's as dots, accurately representing the electron transfer.

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