Which electron configuration is correct for a sodium ion?
(1) 2–7 (3) 2–8–1
(2) 2–8 (4) 2–8–2

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.