Membrane potential (also transmembrane potential or membrane voltage) is the difference in electric potential between the interior and the exterior of a biological cell. With respect to the exterior of the cell, typical values of membrane potential range from â40 mV to â80 mV.
stoichiometric compounds. Stoichiometric Compounds are those in which the number of positive and negative ions are exactly in the ratio indicated by their chemical formulae. Stoichiometric compounds - Fe2SO4. #stoicometry #stoichomatry #stoicometric #stochiometric compounds #stoichio. by samfisher February 21, 2014.
Finely powdered strontium metal is sufficiently reactive to ignite spontaneously in air. It reacts with water quickly (but not violently like the Group 1 metals) to produce strontium hydroxide and hydrogen gas. Strontium and its compounds burn with a crimson flame and are used in fireworks. Strontiumâs Periodic Table Neighborhood Strontium is a Group 2 Alkaline earth metal. It usually exists as a divalent ion, Sr 2+, in its compounds. Strontiumâs chemistry is very similar to that of calcium, which sits above it in Group 2.