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Kooxda 7 (Halogens)

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Waxaan qeexi karaa qaabka falcelinta kuwa aan bir ahayn ee kooxda 7, oo waxaan magacaabi karaa alaabta ka soo baxda falcelinta biraha iyo halogens.

Hordhac

Salaan, waxaan nahay Mr. Gundry. Casharku wuxuu ku saabsan yahay curiyeyaasha kooxda 7-aad, kuwaas oo loo yaqaan halogens-ka. Waa inaad horey uga qayb qaadatay casharradii hore ee diyaarinta jaantuska xilliyeedka.

Muuji qoraalka
The elements in Group 7 are all non-metals that have coloured vapours, most of which are toxic. The state of the elements at room temperature changes from gas to solid, down Group 7. Reactivity decreases down Group 7. Halogens react with Group 1 and 2 metals to form metal halides. Metal halides are soluble in water.

Warqadda shaqada

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Imtixaannada

  1. 1. Mid ka mid ah weedhahan soo socda ayaa si sax ah u qeexaya cusbo (salt)?

    • Walaxda litmus buluugga ah ka beddesha cas.
    • Jawaabta saxda ah:Walaxda la sameeyo marka bir (metal) ay la falgasho bir aan ahayn (non-metal).
    • Walaxda pH-keedu ka weyn yahay 7.
    • Walaxda aan ku milmin biyaha.
    • Walaxda had iyo jeer ahasho (acidic).

  2. 2. Walax leh pH 12 waxaa loo tixgeliyaa inay tahay ...

    • aashito (acidic).
    • Jawaabta saxda ah:alkaline (alkaline).
    • dhexdhexaad (neutral).
    • dhanaan (sour).

  3. 3. Mid ka mid ah kuwan soo socda ayaa qeexaya isbeddel jireed (physical change)?

    • mirixdu (rusting) ee birta
    • Jawaabta saxda ah:dhalaalinta barafka
    • gubista qoryaha
    • karinta keega

  1. 1. Mid ka mid ah curiyeyaasha (elements) soo socda waa halogen?

    • sodium
    • Jawaabta saxda ah:chlorine
    • magnesium
    • carbon
    • oxygen

  2. 2. Maxaa ku dhacaya falcelinta halogens markaad hoos u dhaqaaqdo Group 7?

    • way kordhaysaa
    • Jawaabta saxda ah:way yaraataa
    • way isku mid ahayd
    • way isbedbeddeshaa

  3. 3. Xaaladda iodine ee heerkulka qolka waa ...

    • Jawaabta saxda ah:adag.
    • dareere.
    • gaas.

  4. 4. Waa kuwee kuwan soo socda ay yihiin waxsoosaarka falgalka (reaction) u dhexeeya birta kooxda 1 (Group 1 metal) iyo halogen?

    • hydroxide bir ah (metal hydroxide)
    • Jawaabta saxda ah:halide bir ah (metal halide)
    • gaas hydrogen ah (hydrogen gas)
    • biyo (water)

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