
හයිඩ්රජන් වර්ණාවලිය – විමෝචන හා අවශෝෂණ වර්ණාවලි
Learn the hydrogen spectrum in Sinhala with interactive 3D energy levels. Explore emission, absorption, line spectra and Lyman, Balmer, Paschen, Brackett and Pfund series.
AChem වෙතින් සකස් කළ පාඩම් සටහන්, රූප සටහන්, වගු සහ පැහැදිලි විස්තර මෙතැනින් බලන්න.
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Learn the hydrogen spectrum in Sinhala with interactive 3D energy levels. Explore emission, absorption, line spectra and Lyman, Balmer, Paschen, Brackett and Pfund series.

Learn electron configuration in Sinhala with interactive 3D simulations. Explore Aufbau, Pauli and Hund rules, orbital filling, electron spin and ion configurations.

Learn S-block quantum orbitals in Sinhala with interactive 3D electron clouds. Explore electron configuration, radial nodes, shielding, atomic radius and ionization energy trends.

Learn successive ionization energies in Sinhala with an interactive 3D Bohr model. Explore electron removal, shell jumps and electron configurations for A/L Chemistry.

Learn S-block elements in Sinhala with interactive 3D orbitals. Explore electron configurations, radial nodes, atomic radius, shielding and ionization energy trends.

Learn ion formation and ionization in Sinhala with interactive 3D models. Explore cations, anions, electron transfer, ionic charge and polyatomic ions for A/L Chemistry.

Learn nuclear stability in Sinhala with an interactive 3D simulation. Explore neutron-proton ratio, isotopes, alpha, beta and gamma radioactive decay for A/L Chemistry.

Learn mass spectrometry in Sinhala with interactive Dempster and Aston models. Explore isotope separation, mass spectra and relative atomic mass for A/L Chemistry.
Learn nuclides, isotopes and nuclear stability in Sinhala with interactive 3D models and a Segre Chart. Explore N/Z ratio, alpha and beta decay for A/L Chemistry.

Learn atomic nucleus and quark structure in Sinhala with an interactive 3D simulation. Explore protons, neutrons, strong nuclear force, up and down quarks for A/L Chemistry.

Learn the Rutherford Gold Foil Experiment in Sinhala with an interactive 3D simulation. Explore alpha scattering, deflection, backscattering and the discovery of the atomic nucleus.

Learn Alpha, Beta and Gamma nuclear decay in Sinhala with an interactive 3D simulation. Explore U-238, C-14 and Tc-99m decay reactions for A/L Chemistry.