Question

Need my answer(s) checked

Using the noble gas core, what is the electron configuration of Pb? Please write all superscripts as "regular" numbers. For example, N, [He]2s22p3, would be entered as [He]2s22p3

I got: [Xe]-4f14-5d10-6s2-6p2

During a normal breath, our lungs expand about 0.50 L against an external pressure of 1.0 atm. To two sig figs, how much work (in Joules) is involved in this process? Please enter just the number and sign, no units. For example, 40.73 J would be entered as +41

I got: 5.1