From Atoms to Materials

In the modern Periodic Table, elements are arranged in order of increasing atomic numbers. Fig. 13.14 shows part of the modern Periodic Table. The existence of noble gases was confirmed, and they were assigned a new column in the Periodic Table. Glenn Seaborg non-metal semi-metal metal Li Be H He Na Mg Al B C N O F Ne Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Fig. 13.14 Part of the modern Periodic Table A new column : noble gases Henry Moseley ( 莫斯利 ) arranged elements in order of increasing atomic numbers, and confirmed the periodic similarities of elements’ properties. Glenn Seaborg ( 西博格 ) discovered a series of new elements (Z = 92–102). These elements were arranged in a new block at the bottom of the Periodic Table. Henry Moseley 1894 1914 1969 Moseley’s Periodic Law Modern Periodic Table non-metal semi-metal metal Li Be H He Na Mg Al B C N O F Ne Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Key: A complete Periodic Table is printed in the Appendix. 31 13 From Atoms to Materials © United Prime Educational Publishing (HK) Limited 2024 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of the Publisher. Sample