Number of the records: 1
kovy ľahké
Subject h. kovy ľahké Subject h. Metals, Light English X references Light Metals Scope note in English Metals with low specific gravity, typically smaller than 5, characterized by a single valence (1, 2, or 3), a simple spectrum, strong electromotive force (positive), and colorless compounds. (From Grant & Hackh's Chemical Dictionary, 5th ed) 
subject heading
Number of the records: 1