Noble Gases
Muhtasari
On the far right of the periodic table sits a group of elements so reluctant to react that they were once called the inert gases: helium, neon, argon and the rest. They float as single atoms, glow in coloured lights and fill the spaces where ordinary air would cause trouble. Their secret is in their electron arrangement.
In this lesson you will learn that the Group VIII noble gases are unreactive, monatomic gases, and you will explain that unreactivity in terms of their electronic configuration. This idea, a full outer shell, is the key to understanding why other elements bond at all.
Malengo
- Describe the Group VIII noble gases as unreactive, monatomic gases and explain this in terms of electronic configuration.
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Hongera kwa kukamilisha somo la Noble Gases. 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.
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- The noble gases exist as: A. Diatomic molecules B. Single atoms C. Giant structures D. Negative ions Answer: B
- Why are the noble gases unreactive? A. They are very heavy B. They have a full outer electron shell C. They are metals D. They have no electrons Answer: B
- Which term describes a gas that exists as single atoms? A. Diatomic B. Monatomic C. Triatomic D. Polyatomic Answer: B
- How many electrons are in the outer shell of argon? A. 2 B. 6 C. 8 D. 18 Answer: C
- Which noble gas is used to fill filament light bulbs? A. Helium B. Neon C. Argon D. Hydrogen Answer: C
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Vitabu Vinavyopendekezwa
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Sehemu ya kitabu
Occurrence, Preparation, and Properties of the Noble Gases
Describe the properties, preparation, and uses of the noble gases
"Chemistry: Occurrence, Preparation, and Properties of the Noble Gases" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/18-12-occurrence-preparation-and-properties-of-the-noble-gases. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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