A. How many electrons will the lithium atom give up to become stable? B. How many electrons does the oxygen atom need to become stable?

C. Can a stable compound be made from these two atoms? Explain why or why not.

i believe the answer is a.

particle   p is an electron and particle q is a neutron

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.