In the balmer series of the hydrogen atom, what is the smallest value of the principal quantum number of the initial state for e

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

How might this scientific phenomena be explained? a paper clip floats on water.