Calculate the wavelengths of the first 4 lines in the Ballmer emission spectrum of hydrogen (n1 – 2 and n2 – 3,4,5). Work in ev units for energy. Refer your answers to the colour as demonstrated in the
line spectra.

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space