The Periodic Table of the Elements
An Introduction to Chemistry
EXPLORE the Periodic Table of the Elements, in overview and by atomic numbers, chemical symbols, and chemical names.
DISCOVER trends within groups and periods for atomic weight, melting point, boiling point, bond length, electronic configuration, oxidation state(s), first ionization potential, and electron affinity.
ENRICH general chemistry and engineering.
Excerpts
© 1990 Douglas Drenkow. All Rights Reserved.
1) HYDROGEN [H]
GROUP: 1
PERIOD: 1
ATOMIC WEIGHT: 1.00794
MELTING POINT: -259.34°C
BOILING POINT: -252.87°C
H-H BOND LENGTH: 0.74611 Å
ELECTRONIC CONFIGURATION: 1s1
OXIDATION STATE(S): -1, +1
FIRST IONIZATION POTENTIAL: 13.598 eV
ELECTRON AFFINITY: 0.754209 eV
Group 1: Trend for Electronic Configuration
1 | HYDROGEN [H] | 1s1 | ||
3 | LITHIUM [Li] | K 2s1 | ||
11 | SODIUM [Na] | KL 3s1 | ||
19 | POTASSIUM [K] | KL 3s2,p6,d0 4s1 | ||
37 | RUBIDIUM [Rb] | KLM 4s2,p6,d0,f0 5s1 | ||
55 | CESIUM [Cs] | KLM 4s2,p6,d10,f0 5s2,p6,d0,f0 6s1 | ||
87 | FRANCIUM [Fr] | KLMN 5s2,p6,d10,f0 6s2,p6,d0,f0, 7s1 |
Screenshot: The Periodic Table of the Elements (less Lanthanides & Actinides)
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