Azufre: (Z=16) grupo 16 Sodio: (Z=11) grupo 1 Calcio: (Z=20) grupo 2 Fluor: (Z=9) grupo 17 a)- Realiza su configuración electrónica. b)- Indica cuál será su capa de valencia y cuántos electrones contiene. c)- Explica razonadamente cómo consigue cada elemento la configuración electrónica más estable.

What is the mass of sodium in 3 moles of sodium chloride

Why is the structure of molecule important to its function?

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.