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Element families (alkali metals, alkaline earth metals, halogens, noble gases) Transitional Reasoning Practice

Chemistry · The Periodic Table · Chemistry · Organization of the Periodic Table

1 Chemistry practice questions on Element families (alkali metals, alkaline earth metals, halogens, noble gases). Questions that build towards applied reasoning.

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  1. 1.

    A student investigating four main-group elements determines that Element Q reacts vigorously with cold water to produce hydrogen gas and forms a +1 cation, while Element M readily loses two valence electrons to form a dipositive cation. Element R exists naturally as diatomic molecules and reacts with sodium to form a salt with the empirical formula NaR, whereas Element T is a completely inert monatomic gas under standard conditions. Based on these observations, which element family is correctly matched with its corresponding element?

    • A) Alkali metals: Element M
    • B) Alkaline earth metals: Element T
    • C) Halogens: Element R
    • D) Noble gases: Element Q

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