F.4 chem ionic structure
"Since caesium is larger in size than sodium ion, each ion is surroundes by 8 chloride ion"
點解caesuin個size大d就會比多d chloride ion包住?!
- 9 年前最愛解答
DSE syllabus only covers two ionic compounds, NaCl and CsCl.
What you need to know is:
- Cl ions are larger than Na ions.
- The definition of "coordination number", which means the number of surrounding ions of an ionic compound, for example, each Na ion is surrounded by 6 Cl ions. Therefore, the coordination number is six for NaCl. And you have to know the coordination number of CsCl is eight.
Your textbook illustrates the crystal lattice structures of the above-named compounds, you will have to know how to draw the part of the structures.
I think your questions are already out of the syllabus, especially "點樣知道1粒ion比幾多其他ion包住?!".
The properties of the 4 structures are more likely the main point of your chapter!資料來源： My teacher + a S4 chemistry textbook
- 匿名9 年前
大粒d 佢就可以比多d ions 圍住