0.250 L*3M=0.250 L*3mol/L= 0.750 mol
Potassium or any other metals.
<span>When an electron, which is negatively charged, moves towards an electronegative atom, the electronegative atom pulls in the electron. This causes the electronegative atom to be reduced. This entire process also releases energy.</span>
Answer: E. none of these
Explanation: because the f-block element is n-2