UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper I

Q9(c). Effective nuclear charge of the last electron in Na

10 marks
Topic: Outside the listed units
Question only

Question

Calculate the effective nuclear charge (Zeff) for the last electron in sodium (Na) atom. (Atomic number of Na = 11)

Model answer

The free solution for 2018 answers questions 1, 3, 4, 6, 8 and 11, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.

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CoversSlater's ruleseffective nuclear chargesodiumshielding

All parts of Question 9

9(a) Thermal decomposition of Li, Mg and Na salts; diagonal relationship15 marks
9(b) Basic beryllium acetate5 marks
9(c) Effective nuclear charge of the last electron in Na10 marks