7. using the formula derived in a previous question and the formula ∆e= hv, calculate the frequency and the energy of each line you observed in the hydrogen spectrum. record the wavelength in meters. show all your calculation or values under the data table.

The answer is 65.3312

The answer is probably c. xylem

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.