Ionic BondingOxford AQA IGCSE Chemistry: Flashcards
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Question
What is ionic bonding?
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- What is ionic bonding?
- The transfer of electrons between a metal and non-metal atom, forming oppositely charged ions.
- What charge does a metal ion have, and why?
- Positive, because the metal atom loses electrons.
- What charge does a non-metal ion have, and why?
- Negative, because the non-metal atom gains electrons.
- What electron arrangement do ions have after ionic bonding?
- The electron arrangement of a noble gas (Group 0) — a full outer shell.
- What charge does a Group 1 metal ion have?
- +1 (single positive charge).
- What charge does a Group 7 halide ion have?
- −1 (single negative charge).
- Write the standard form symbol for a sodium ion.
- Na⁺
- Write the standard form symbol for a chloride ion.
- Cl⁻
- Define a cation.
- A positively charged ion, formed when an atom loses electrons.
- Define an anion.
- A negatively charged ion, formed when an atom gains electrons.
- How does ion charge relate to group number for metals in Groups 1–3?
- The ion charge equals the group number (e.g. Group 2 metals form 2+ ions).
- What type of elements combine to form ionic bonds?
- A metal and a non-metal.