The metallic model

Chemia IBPaper 2, maj 2026, TZ1wzorowane4 pktotwarteśrednie (szac.)

Zadanie 2c

(i) Write the equation for the reaction of Rb with water, H₂O, including state symbols. (ii) Describe the type of bonding in Rb and in H₂O, and explain how the valence electrons in each produce that type of bond.

Chemia IBPaper 2, maj 2026, TZ2wzorowane5 pktotwarteśrednie (szac.)

Zadanie 3a

(i) Describe the structure of solid magnesium and state the forces that hold it together. (ii) Explain why a piece of magnesium can be hammered into a new shape without breaking. (iii) Explain why the melting point of magnesium is higher than that of sodium.

Chemia IBPaper 2, maj 2026, TZ3wzorowane5 pktotwarteśrednie (szac.)

Zadanie 3b

(i) Outline why the strength of the metallic bond increases from potassium, K, to calcium, Ca. (ii) Write an equation for the reaction of potassium, K, with water, including state symbols. (iii) Outline why the electronegativity of chlorine is greater than…

Chemia IBPaper 1A, maj 2026, TZ3wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 9

Which list places the metals in order of increasing strength of metallic bonding, from weakest to strongest? A. Rb, K, Sr, Ca B. K, Rb, Ca, Sr C. Sr, Ca, Rb, K D. Ca, Sr, K, Rb

Chemia IBPaper 2, maj 2025, TZ1wzorowane5 pktotwarteśrednie (szac.)

Zadanie 1c

A student proposed that, because tin(IV) iodide might be ionic, electrolysing the molten compound with inert electrodes should regenerate tin and iodine. (i) Label the diagram of the electrolytic cell to show which electrode is the anode and which is the…

• Materiał graficzny

Chemia IBPaper 1A, maj 2025, TZ2wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 9

Metallic bonding results from the attraction between a lattice of cations and delocalized electrons. Which of these group 1 metals has the strongest metallic bonding? A. Cs B. Rb C. K D. Na

Chemia IBPaper 1A, maj 2025, TZ3wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 9

Which list arranges the metals in order of increasing strength of metallic bonding (weakest first)? A. Rb, Mg, Na, Al B. Al, Mg, Na, Rb C. Rb, Na, Mg, Al D. Na, Rb, Al, Mg

Chemia IBPaper 1A, listopad 2025, TZ1wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 9

Which statement best explains why aluminium can be drawn into thin wires? A. The delocalized electrons carry charge through the metal. B. The layers of aluminium ions can slide over each other while the delocalized electrons keep the lattice bonded. C.…

Chemia IBPaper 1A, listopad 2025, TZ3wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 9

Which of these metals has the strongest metallic bonding? A. Be B. Li C. Na D. Mg

Chemia IBPaper 1A, specimen 2025wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 8

Which properties of copper depend on the movement of its delocalized electrons? I. electrical conductivity of the molten metal II. thermal conductivity III. high density A. I and II only B. I and III only C. II and III only D. I, II and III