العربية
中国
Français
Deutsch
Ελληνική
हिन्दी
Italiano
日本語
Português
Русский
EspañolPERIOD 1 ELEMENT
A 'period 1 element' is one of the chemical elements in the first row (or ''period'') of the periodic table of the elements.
Period one is much shorter than any other row in the table, and contains only two elements, hydrogen and helium. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the '1s' orbital. Period 1 elements do not obey the "octet rule".
These are:
Period one is much shorter than any other row in the table, and contains only two elements, hydrogen and helium. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the '1s' orbital. Period 1 elements do not obey the "octet rule".
These are:
| Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| # Name | 1 H | 2 He | ||||||||||||||||
| e--conf. | ||||||||||||||||||
This article provided by Wikipedia. To edit the contents of this article, click here for original source.
psst.. try this: add to faves
