Group 7 (halogens) - Chlorine, Bromine And Iodine
Muhtasari
Chlorine disinfects swimming pools, bromine was once used in photographic film, and iodine is dabbed onto cuts as an antiseptic. These elements belong to Group 7 of the Periodic Table - the halogens - a family of reactive non-metals whose properties follow striking patterns.
In this lesson you will learn the colours and physical states of chlorine, bromine, and iodine, explore the trends in their physical and chemical properties, and use those trends to predict the behaviour of halogens you have never encountered.
Malengo
- Know the colours, physical states (at room temperature) and trends in physical properties of these elements
- Use knowledge of trends in Group 7 to predict the properties of other halogens
Maelezo ya Somo
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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Group 7 (halogens) - Chlorine, Bromine And Iodine. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Going down Group 7, the reactivity of the halogens: A) Increases B) Decreases C) Stays the same D) First increases then decreases Answer: B
- Which halogen is a liquid at room temperature? A) Fluorine B) Chlorine C) Bromine D) Iodine Answer: C
- Chlorine can displace bromine from potassium bromide because: A) Chlorine is less reactive B) Chlorine is more reactive C) Bromine is a gas D) Chlorine is a solid Answer: B
- Going down Group 7, the melting points: A) Decrease B) Increase C) Stay the same D) Fluctuate Answer: B
- How many electrons do halogens have in their outer shell? A) 1 B) 2 C) 7 D) 8 Answer: C
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Group 7 (halogens) - Chlorine, Bromine And Iodine? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
