Practise IB Chemistry SL 1.3.1 with questions interpreting emission lines, electron transitions and photon energy from wavelength or frequency.
Lithium and boron are elements in period 2 of the periodic table. Lithium occurs in group 1 (the alkali metals) and boron occurs in group 3. Isotopes exist for both elements.
Every element has its own unique line emission spectrum.
Distinguish between a continuous spectrum and a line spectrum.
Continuous spectrum: radiation spread over all wavelengths/frequencies/ energies/colours / OWTTE;
Line spectrum: radiation (absorbed/emitted) at certain/specific wavelengths/ frequencies/energies/colours / OWTTE;
Marking guidance:
Allow series of (separate/discrete) lines which converge/get closer together at high energy / OWTTE