1. Sodium chloride (table salt) is considered a pure substance because it consists of a single type of compound, composed of sodium ions (Na+) and chloride ions (Cl−), arranged in a fixed ratio. It does not contain any other substances in its chemical composition.

    Sodium chloride (table salt) is considered a pure substance because it consists of a single type of compound, composed of sodium ions (Na+) and chloride ions (Cl−), arranged in a fixed ratio. It does not contain any other substances in its chemical composition.

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  2. Table salt (sodium chloride) is a classic example of a compound with both cations (sodium ions, Na⁺) and anions (chloride ions, Cl⁻), formed by the ionic bonding between sodium and chlorine atoms.

    Table salt (sodium chloride) is a classic example of a compound with both cations (sodium ions, Na⁺) and anions (chloride ions, Cl⁻), formed by the ionic bonding between sodium and chlorine atoms.

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  3. An anion is a negatively charged ion formed by gaining electrons, while a cation is a positively charged ion formed by losing electrons. Their charges result from the transfer of electrons during chemical bonding.

    An anion is a negatively charged ion formed by gaining electrons, while a cation is a positively charged ion formed by losing electrons. Their charges result from the transfer of electrons during chemical bonding.

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  4. Ions are composed of atoms or groups of atoms that have gained or lost electrons, resulting in a net positive or negative charge. This charge arises from the imbalance of protons and electrons.

    Ions are composed of atoms or groups of atoms that have gained or lost electrons, resulting in a net positive or negative charge. This charge arises from the imbalance of protons and electrons.

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  5. In metals, atomicity typically refers to the single atoms forming metallic bonds, leading to a high degree of atomic mobility. In non-metals, atomicity often refers to molecules composed of two or more atoms bound by covalent bonds, exhibiting limited atomic mobility.

    In metals, atomicity typically refers to the single atoms forming metallic bonds, leading to a high degree of atomic mobility. In non-metals, atomicity often refers to molecules composed of two or more atoms bound by covalent bonds, exhibiting limited atomic mobility.

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