Science Single Award - 4SS0 PearsonEdexcel

Ionic Bonding

Muhtasari

Table salt, limestone, and the chalk on a blackboard all have something in common: they are held together by the same type of chemical bond. When metals react with non-metals, electrons are transferred from one atom to the other, creating charged particles called ions that are locked together by powerful electrostatic forces.

In this lesson you will learn how ions form, how to predict their charges from the Periodic Table, how to write formulae for ionic compounds, and why giant ionic lattices give these substances their characteristic high melting points.

Malengo

  1. Understand how ions are formed by electron loss or gain
  2. Know the charges of ions for metals in Groups 1, 2 and 3, non-metals in Groups 5, 6 and 7, and common polyatomic ions
  3. Write formulae for compounds formed between the ions listed
  4. Understand ionic bonding in terms of electrostatic attractions
  5. Understand why compounds with giant ionic lattices have high melting and boiling points

Maelezo ya Somo

Atoms are most stable when their outer electron shell is full. Metals have only a few electrons in their outer shell and find it easier to lose them. Non-metals are close to a full shell and find it easier to gain electrons. When a metal meets a non-metal, electrons are transferred, and both atoms achieve a stable electronic structure.

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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.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Ionic Bonding. 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.

  1. An ionic bond is best described as: A) The sharing of electrons between atoms B) The transfer of electrons from metal to non-metal C) The electrostatic attraction between oppositely charged ions D) A weak force between molecules Answer: C
  2. What charge does a Group 2 metal ion have? A) 1+ B) 2+ C) 1- D) 2- Answer: B
  3. Ionic compounds conduct electricity when molten because: A) The electrons are shared B) The ions are free to move C) The molecules break apart D) The metal melts Answer: B
  4. What is the formula of calcium chloride? A) CaCl B) CaCl2 C) Ca2Cl D) Ca2Cl3 Answer: B
  5. Ionic compounds have high melting points because: A) They contain heavy atoms B) They are made of molecules C) Strong electrostatic forces hold ions in a giant lattice D) They are always solids 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.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

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.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Fanya Mazoezi ya Maswali ya Majaribio

Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Ionic Bonding? 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.

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