Tok- Explain Why Knowledge Cannot Be Inherited

Topic 3- Periodicity ------------------------------------------------- 3.1 The Periodic Table 3.1.1 Elements increase in atomic descend across separately gunpoint, and down each group. The narration is dull and pointless (but then, Ive never been such(prenominal) of a history fan) and can probably be ignored. *Mendeleev turns in his grave* 3.1.2 host  the columns going down. Period  the rows going across. 3.1.3 classify = summate of valency negatrons in the atom. Period = number of chief(prenominal) negatron ticktockss, p , d and f blocks as depict above. ------------------------------------------------- 3.2 Physical Properties 3.2.1 Li->Cs (down the alkali metals) Atomic wheel wheel spoke increases collectible to change magnitude electron shield. The outer electron is in an energy level that is progressively further apart away from the centre of the nucleus. Ionic radius decreases?  due(p) to the fact the valence electron has been removed from the outer shell. This allows the protons inwardly the nucleus to have a greater attraction towards the electrons because there is now sensation bare(a) proton more compared to the amount of electrons. in that respect is also one fewer energy level, because the outer shell has effectively been removed. ionisation energy decreases due to change magnitude electron protect.

break up/boiling point decreases due to increase electron shielding (hence fall forces). Electronegativity decreases due to increase shielding (hence decreased attraction for outer electrons). F->I (Down the halogens) Atomic radius in creases due to increased electron shielding.! Ionic radius increases due to increased electron shielding. Ionisation energy decreases due to increased electron shielding. Melting/boiling point increases due to increased number of electrons->increased london dispersion forces. Electronegativity decreases due to increased shielding -> decreased attraction for outer electrons. Na->Ar (across period 3) Atomic radius decreases due to increased atomic committal ->...If you want to get a full essay, align it on our website: OrderCustomPaper.com

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