Frank Textbook Solutions: Metals and Non-metals

 Page 1


Chapter 7.Metals and Non-metals
Solution 1: 
Solution 2: 
Solution 3: 
Metal which exist in liquid state is mercury. 
Non-metal which exist in liquid state is bromine. 
Concept Insight: Metals are usually solid while non-metals exist in all the three states.
Solution 4: 
The most abundant metal in the earth’s crust is aluminium and the most abundant non-metal in the 
earth’s crust is oxygen.
Solution 5:
1. Metals.
2. Non-metals.
3. Platinum and Gold.
4. Potassium and Sodium.
5. Potassium, Sodium and Calcium.
6. Iron.
7. Potassium and Sodium.
8. Platinum.
9. Platinum and Gold.
10. Mercuric oxide (HgO) and Silver oxide (Ag
2
O).
11. Potassium hydroxide (KOH) and Sodium hydroxide (NaOH).
12. Potassium carbonate (K
2
CO
3
) and Sodium carbonate (Na
2
CO
3
).
 PAGE NO : 151 
Page 2


Chapter 7.Metals and Non-metals
Solution 1: 
Solution 2: 
Solution 3: 
Metal which exist in liquid state is mercury. 
Non-metal which exist in liquid state is bromine. 
Concept Insight: Metals are usually solid while non-metals exist in all the three states.
Solution 4: 
The most abundant metal in the earth’s crust is aluminium and the most abundant non-metal in the 
earth’s crust is oxygen.
Solution 5:
1. Metals.
2. Non-metals.
3. Platinum and Gold.
4. Potassium and Sodium.
5. Potassium, Sodium and Calcium.
6. Iron.
7. Potassium and Sodium.
8. Platinum.
9. Platinum and Gold.
10. Mercuric oxide (HgO) and Silver oxide (Ag
2
O).
11. Potassium hydroxide (KOH) and Sodium hydroxide (NaOH).
12. Potassium carbonate (K
2
CO
3
) and Sodium carbonate (Na
2
CO
3
).
 PAGE NO : 151 
13. Potassium carbonate (K
2
CO
3
) and Sodium carbonate (Na
2
CO
3
).
14. Potassium nitrate (KNO
3
) and Sodium nitrate (NaNO
3
).
15. Mercuric nitrate (Hg(NO
3
)2) and silver nitrate (AgNO
3
)
Solution 6: 
Solution 7:
1. Fe < Zn < Mg < Na.
2. Na = Al < Cu<Fe
3. Ca >Mg > Fe > Cu.
Solution 8: