A negative ion is formed by the...

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

A negative ion is formed by the...

Explanation:
Forming a negative ion happens when an atom gains electrons. Electrons are negatively charged, so adding more of them gives the atom a net negative charge, creating an anion. In contrast, losing electrons would remove negative charge and produce a positively charged ion, not a negative one. Gaining or losing protons would change the element itself (a nuclear change), not form a chemical ion, so those options don’t produce a negative ion.

Forming a negative ion happens when an atom gains electrons. Electrons are negatively charged, so adding more of them gives the atom a net negative charge, creating an anion. In contrast, losing electrons would remove negative charge and produce a positively charged ion, not a negative one. Gaining or losing protons would change the element itself (a nuclear change), not form a chemical ion, so those options don’t produce a negative ion.

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