Does anyone know how to calculate how many protons, neutrons, and electrons are in a Vanadium 2+ ion with a molar mass of 53 grams per mole? If so please post on the comments page the instructions for the calculations. Thanks.
Well, it's fairly simple. The number of protons and neutrons is unaffected by the ion state. The protons in a single ion of Va2+ is equal to the atomic number. To know the number of neutrons you need to know the isotope of Va the ion represents; it is then the atomic weight minus the atomic number. The number of electrons in an electrically neutral atom is equal to the number of protons. To get a given positive charge, you subtract the charge from the number of electrons in the electrically neutral atom.
Vanadium has a significant biological role aside being present in an alternative nitrogenase. For example, V(III) has a role in tunic synthesis in ascideans, V(IV) is involved peroxidase and catalase activity in some toadstools, and V(V) is certain defensive halogen peroxidases. —Preceding unsigned comment added by Semoderm (talk • contribs) 06:49, 14 April 2009 (UTC)
And it's part of an oxygen-transport system in some animals, isn't it? Eldin raigmore (talk) 18:45, 16 May 2009 (UTC)
This is speculation and not yet proven.--Stone (talk) 12:03, 18 May 2009 (UTC)
Shouldn't Vanadium also be in Category:Biology and pharmacology of chemical elements ? Eldin raigmore (talk) 18:46, 16 May 2009 (UTC)
Wanted to suggest additional information on biological vanadium. Scientific American blog recently published an article on Pyura Chilensis, in immobile, invertebrate sac-like filter feeders that belong to the Tunicata subphylum and practically bleed vanadium. From the blog post - "Their blood is clear and, strangely, can accumulte extremely high [quantities] of a mysterious and rare element called vanadium. The concentration of vanadium in the blood of P. chilensis and other tunicates can be up to 10 million times that of the surrounding seawater. Just why and how these creatures are able to accumulate vanadium in such huge quantities remains unknown." Smash591 (talk) 16:34, 10 July 2013 (UTC)
I changed vakuum to vacuum, thinking this was an error in translation from a German page. It was reverted in two minutes. I'm curious as to the reason, and I expect there is one. SpareHeadOne 00:06, 17 December 2014 (UTC) — Preceding unsigned comment added by SpareHeadOne (talk • contribs)