Understanding the scientific rationale behind Tin's position in the periodic table:
Belongs to Group 14 because it has 4 valence electrons (5s² 5p²).
Belongs to Period 5 because its outermost electrons occupy n=5.
Belongs to the p-block because its valence electrons occupy 5p orbitals.
Classified as a post-transition metal due to lower ionization energy and distinct metallic character compared to silicon and germanium.
Hover or tap any shell orbit ring to inspect electron counts and 2n² capacities.
Educational Note: This Niels Bohr planetary model visually illustrates principal quantum energy shells ($n=1, 2, 3\dots$) and electron counts. In modern quantum mechanics (Schrödinger model), electrons do not orbit in fixed circular planetary tracks, but exist as 3D probability clouds (orbitals: $s, p, d, f$) governed by the Heisenberg uncertainty principle.
Neutral ground state configuration. Valence electrons: 4.
Mined primarily from cassiterite (tinstone / SnO₂) placer sand deposits in China, Indonesia, and Myanmar.
From Germanic root 'tin'; symbol Sn from Latin 'stannum'
Elemental tin is non-toxic and food-safe, but organotin compounds (tributyltin / TBT) are toxic marine pollutants.