Topic Details (Notes format)

Protons, Neutrons, and Electrons

Subject: Chemistry

Book: General Chemistry

Protons are positively charged particles in the nucleus with a relative charge of +1. Neutrons have no electric charge and add mass and stability to the nucleus. Electrons are negatively charged particles found in orbitals around the nucleus, with a relative charge of –1. The balance of protons and electrons determines the overall charge of an atom. Variations in neutron number produce isotopes, while changes in electron number produce ions.

Practice Questions

Which non-metal element is liquid at room temperature?

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What is the chemical formula for sodium hypochlorite?

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Which element is used in the production of rust?

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What is the chemical formula for sodium oxide?

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Which acid is present in lemon juice?

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Which element is used in lithium-ion batteries?

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Which element is commonly used as a catalyst in hydrogenation reactions?

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Which element is primarily used in stainless steel?

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What is the chemical formula for ammonia?

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Which element is represented by the symbol 'Na'?

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