Ions And Ionic Bonds
Muhtasari
Common salt, the white crystals you sprinkle on food, is held together by one of the strongest forces in chemistry. It is made not of molecules but of charged particles called ions, locked together by their opposite charges. This ionic bonding is how most metals join with non-metals.
In this lesson you will learn how atoms become ions by losing or gaining electrons, why they do so, and how the attraction between oppositely charged ions forms an ionic bond. You will use sodium chloride as the key example.
Malengo
- [Core] Describe the formation of positive ions, known as cations, and negative ions, known as anions
- [Core] State that an ionic bond is a strong electrostatic attraction between oppositely charged ions
- [Core] Describe the formation of ionic bonds between elements from Group I and Group VII, including the use of dot-and-cross diagrams
- [Core] Describe the properties of ionic compounds: (a) high melting points and boiling points (b) good electrical conductivity when aqueous or molten and poor when solid (c) generally soluble in water
- [Supplement] Describe the formation of ionic bonds between ions of metallic and non-metallic elements, including the use of dot-and-cross diagrams
- [Supplement] Describe the giant lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions, exemplified by sodium chloride
Maelezo ya Somo
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Ions And Ionic Bonds. 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.
- A positive ion is formed when an atom: A. Gains electrons B. Loses electrons C. Gains protons D. Loses protons Answer: B
- An ionic bond is the attraction between: A. Two atoms sharing electrons B. Oppositely charged ions C. Identical ions D. Molecules Answer: B
- When sodium reacts with chlorine, the sodium atom: A. Gains one electron B. Loses one electron C. Shares one electron D. Loses one proton Answer: B
- What is the charge on a magnesium ion, formed from an atom with arrangement 2, 8, 2? A. 1+ B. 2+ C. 1- D. 2- Answer: B
- Ionic bonds usually form between: A. Two non-metals B. Two metals C. A metal and a non-metal D. Two gases Answer: C
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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.
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
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Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Ions And Ionic Bonds? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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