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Behaviour of Biomolecules: Metals (1) Lecture notes
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Course: BSc Biomedical Sciences University: University of Southampton Behaviour of Biomolecules: Metals (1) Lecture notes Lecturer: Ivo Tews

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  • November 7, 2023
  • 68
  • 2017/2018
  • Lecture notes
  • Ivo tews
  • Metals (1) lecture

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Biol1021 – Ivo Tews
Behavior of Biomolecules




1

,Normally a lecture on metals starts like this:
property METAL NON METAL
conductivity heat, e- insulator
malleability good shatters
flexibility ductile brittle
appearance shiny dull

© Crowe, Table 11.1
How d u l l can it be? 2

,Metal, Metalloids – Periodic Table

Metals Non-Metals (p)
(s, d, f, p) Metalloids 
(p)




3

, Eighteen metals in biological systems
• We need several non-metal elements H, C, N, O
• The following nine elements are required in significant
amounts, and called macronutrients:
non-metals: S, P and Cl
metalloids/semi-metals: Si
metals: Na, K, Mg, Ca, Fe 25 Essential
Elements
• These twelve elements (mainly metals) are required in
small quantities, and called micronutrients:
non-metals: F, I, Se
metals: V, Cr, Mn, Co, Ni, Cu, Zn, Mo, Sn
• Some organisms require further micronutrients
non-metals: Br
metalloids: B, As
metals: Sr, Ba, W, Cd 4

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