Question
What are the major differences between metals and non-metals?
| Metals | Non-metals | ||
| 1. | Have a strong tendency to lose electrons to from cations. | 1. | Non-metals are strong tendecy to accept electrons to from anions. |
| 2. | Metals are strong reducing agents. | 2. | Non-matels are strong oxidising agent. |
| 3. | Metal have low ionization enthalpies. | 3. | Non-metals have high ionization enthalpies. |
| 4. | Metals form basic oxides and ionic compounds. | 4. | Non-metals from acidic oxides and covalents compounds. |
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$\text{P}_4(\text{s})+\text{OH}^{-}(\text{aq})\rightarrow\text{PH}_3(\text{g})+\text{HPO}_2^-(\text{aq})$
| | NaHCO3(s) | Na2CO3(s) | CO2(g) | H2O(g) |
| $\ \ \ \ \Delta_\text{f}\text{H}^\circ\$\text{kJ mol}^{-1})$ | -947.7 | -1130.9 | -393.51 | -241.82 |
| $\ \ \ \ \ \text{S}^\circ_\text{m}\$\text{J mol}^{-1})$ | 102.1 | 136 | 188.83 | 213.74 |
| B | Al | Ga | In | Tl |
| 801 | 577 | 579 | 558 | 589 |