Metallic bonding

• What is metallic bonding?

  Attraction between metal atoms
• Metal atoms lose their outer electrons to form positive ions.

  True
• What type of atoms are involved in metallic bonding?

  Metal atoms
• Ionic bonds involve the transfer of electrons between a metal and a nonmetal.

  True
• Why does iron have a "giant structure" according to the image?

  Because iron has metallic bonding between its ions and delocalized electrons
• Match the property of metals with its explanation:

  Good conductor ↔️ Electrons flow freely between ions

  Malleable ↔️ Metal layers can slide past each other

  Strong structure ↔️ Shared electrons create strong bonds

  Shiny appearance ↔️ Electrons reflect light
• Arrange the bonding types based on their order in the table:

  1️⃣ Metallic

  2️⃣ Ionic

  3️⃣ Covalent
• What is the primary characteristic of metallic bonding?

  Delocalized sharing
• What is the difference between an ionic bond and a covalent bond?

  Ionic bond involves the transfer of electrons, while covalent bond involves the sharing of electrons
• Covalent bonds involve electron sharing between two nonmetal atoms.

  True
• Match the key terms with their definitions:

  Metallic Bonding ↔️ The attractive force between metal atoms and delocalized electrons

  Delocalized Electrons ↔️ Electrons shared across the metal lattice
• Delocalized electrons are not associated with individual atoms.

  True
• What type of bonding is represented in the image?

  Metallic bonding
• Metals are malleable because their layers can slide past each other.

  True
• What are the key characteristics of a covalent bond?

  • Formed between two nonmetals or a metal and a nonmetal
  • Involves the sharing of one or more pairs of electrons between atoms
  • Results in the formation of electrically neutral molecules
  • Held together by the mutual attraction of the shared electrons
• What are the two components of metallic bonding that contribute to the properties of metals?

  Delocalized electrons and metal ions
• What causes the shiny appearance of metals?

  Electrons reflecting light
• What is the formula to calculate the area of a circle?

  $A =$$\pi r^2$
• If atom A has 3 valence electrons and atom B has 5 valence electrons, what type of bond would they form?

  Covalent bond
• What types of atoms are involved in covalent bonding?

  Nonmetal + nonmetal
• What types of atoms are involved in ionic bonding?

  Metal + nonmetal
• Arrange the bonding types based on their decreasing order of electron transfer:

  1️⃣ Ionic

  2️⃣ Covalent

  3️⃣ Metallic
• Match the bonding type with its atomic composition:

  Metallic ↔️ Metal atoms

  Ionic ↔️ Metal + nonmetal

  Covalent ↔️ Nonmetal + nonmetal
• What distinguishes metallic bonding from ionic and covalent bonding?

  Delocalized electrons
• What are the key properties of metallic bonding?

  • Delocalized electrons shared between metal ions
  • High electrical and thermal conductivity
  • Malleable and ductile
  • High melting and boiling points
• What other metals also form 2+ ions like iron according to the image?

  Magnesium
• How do the structures of ionic and covalent molecules differ?

  • Ionic molecules: Consist of positively and negatively charged ions arranged in a crystalline structure
  • Covalent molecules: Consist of electrically neutral atoms bonded together in discrete molecular units
• Match the bonding type with its electron behavior:

  Metallic ↔️ Delocalized sharing

  Ionic ↔️ Electron transfer

  Covalent ↔️ Electron sharing
• What are the key characteristics of an ionic bond?

  • Formed between a metal and a nonmetal
  • Involves the complete transfer of one or more electrons from the metal to the nonmetal
  • Results in the formation of positively and negatively charged ions
  • Held together by the electrostatic attraction between the oppositely charged ions