1. When an atom's outermost shell is close to being full, its valency is determined by the number of electrons needed to either gain or lose to achieve a complete octet or duet configuration, depending on the specific circumstances and chemical bonding tendencies.

    When an atom’s outermost shell is close to being full, its valency is determined by the number of electrons needed to either gain or lose to achieve a complete octet or duet configuration, depending on the specific circumstances and chemical bonding tendencies.

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  2. Understanding valency helps predict how atoms will react and form chemical bonds. Elements with the same valency often exhibit similar chemical behaviors, as they tend to gain, lose, or share electrons in a manner that allows them to achieve stable electron configurations and form compounds with othRead more

    Understanding valency helps predict how atoms will react and form chemical bonds. Elements with the same valency often exhibit similar chemical behaviors, as they tend to gain, lose, or share electrons in a manner that allows them to achieve stable electron configurations and form compounds with other elements.

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  3. Valency determines how atoms interact in chemical reactions. It indicates the number of bonds an element can form, guiding the formation of compounds and predicting the products of reactions based on the transfer or sharing of electrons.

    Valency determines how atoms interact in chemical reactions. It indicates the number of bonds an element can form, guiding the formation of compounds and predicting the products of reactions based on the transfer or sharing of electrons.

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  4. The valency of magnesium is 2, as it readily loses its 2 valence electrons to achieve a stable electron configuration. Aluminum's valency is 3, as it loses its 3 valence electrons to attain a stable configuration.

    The valency of magnesium is 2, as it readily loses its 2 valence electrons to achieve a stable electron configuration. Aluminum’s valency is 3, as it loses its 3 valence electrons to attain a stable configuration.

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  5. The valency of hydrogen is 1, as it typically gains or loses one electron to achieve a stable electron configuration. Lithium's valency is 1, and sodium's is 1, as both elements readily lose their single valence electron.

    The valency of hydrogen is 1, as it typically gains or loses one electron to achieve a stable electron configuration. Lithium’s valency is 1, and sodium’s is 1, as both elements readily lose their single valence electron.

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