A student found that her mixture contains 35% NaCl and 75% sio2. assuming her calculation and weighing are correct, what is the possible source of error in her experiment

Noble gases is far right

Bthe s the

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.