Definition, Betydelse & Anagram | Engelska ordet VALENCES

Definition av VALENCES

1. böjningsform av valence

Exempel på hur du använder VALENCES i en mening

• The etymology of the words valence (plural valences) and valency (plural valencies) traces back to 1425, meaning "extract, preparation", from Latin valentia "strength, capacity", from the earlier valor "worth, value", and the chemical meaning referring to the "combining power of an element" is recorded from 1884, from German Valenz.
• One group includes elements having large ionic radius, such as potassium, rubidium, caesium, strontium, and barium (called LILE, or large-ion lithophile elements), and the other group includes elements of large ionic valences (or high electrical charges), such as zirconium, niobium, hafnium, rare-earth elements (REE), thorium, uranium and tantalum (called HFSE, or high-field-strength elements).
• While all lanthanides form relatively large trivalent (3+) ions, Eu and cerium (Ce) have additional valences, europium forms 2+ ions, and Ce forms 4+ ions, leading to chemical reaction differences in how these ions can partition versus the 3+ REEs.
• Typical houses in the row feature porches with hip roofs, wooden posts with chamfered and reeded details, lattice-shaped valences, and ornamental brackets.
• One of the few notable differences between the chemistry of yttrium and that of the lanthanides is that yttrium is almost exclusively trivalent, whereas about half the lanthanides can have valences other than three; nevertheless, only for four of the fifteen lanthanides are these other valences important in aqueous solution (Ce, Sm, Eu, and Yb).
• Group I hospitals can also provide some additional valences like ophthalmology and cardiology, but never provide the valences of medical genetics, allergology, pediatric cardiology, vascular surgery, neurosurgery, plastic surgery, cardiothoracic surgery, maxillofacial surgery, pediatric surgery and neuroradiology;.
• The state's promotion of Dansaekhwa in the 70s and 80s that deemphasized its political valences placed it in discursive opposition to the 1980s Minjung art movement.
• Due to chemical properties of the two elements, namely their valences and ionic radii, Lu is usually found in trace amount in rare-earth element loving minerals, such as garnet and phosphates, while Hf is usually found in trace amount in zirconium-rich minerals, such as zircon, baddeleyite and zirkelite.

Förberedelsen av sidan tog: 73,43 ms.