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Atoms · Lanthanides: 15 3D models

Every element as an atom, orbitals and bonding, crystals, ions and complexes, real compounds from every field of chemistry, substances in their natural form, electrochemistry and lab experiments (real sizes atoms → lab bench). Each one is a ready-made 3D model you can turn, recolour and place in a figure — open BioDioRama and type its name in the Library search.

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Lanthanum atom (La) — Lanthanum (La), atomic number 57 — lanthanide, period 6. 57 protons, about 82 neutrons in its commonest isotope, and 57 electrons in shells 2, 8, 18, 18, 9, 2 ([Xe] 5d¹ 6s²). Standard atomic weight 138.91. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Cerium atom (Ce) — Cerium (Ce), atomic number 58 — lanthanide, period 6. 58 protons, about 82 neutrons in its commonest isotope, and 58 electrons in shells 2, 8, 18, 19, 9, 2 ([Xe] 4f¹ 5d¹ 6s²). Standard atomic weight 140.12. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Praseodymium atom (Pr) — Praseodymium (Pr), atomic number 59 — lanthanide, period 6. 59 protons, about 82 neutrons in its commonest isotope, and 59 electrons in shells 2, 8, 18, 21, 8, 2 ([Xe] 4f³ 6s²). Standard atomic weight 140.91. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Neodymium atom (Nd) — Neodymium (Nd), atomic number 60 — lanthanide, period 6. 60 protons, about 84 neutrons in its commonest isotope, and 60 electrons in shells 2, 8, 18, 22, 8, 2 ([Xe] 4f⁴ 6s²). Standard atomic weight 144.24. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Promethium atom (Pm) — Promethium (Pm), atomic number 61 — lanthanide, period 6. 61 protons, about 84 neutrons in its commonest isotope, and 61 electrons in shells 2, 8, 18, 23, 8, 2 ([Xe] 4f⁵ 6s²). Standard atomic weight 145. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Samarium atom (Sm) — Samarium (Sm), atomic number 62 — lanthanide, period 6. 62 protons, about 88 neutrons in its commonest isotope, and 62 electrons in shells 2, 8, 18, 24, 8, 2 ([Xe] 4f⁶ 6s²). Standard atomic weight 150.36. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Europium atom (Eu) — Europium (Eu), atomic number 63 — lanthanide, period 6. 63 protons, about 89 neutrons in its commonest isotope, and 63 electrons in shells 2, 8, 18, 25, 8, 2 ([Xe] 4f⁷ 6s²). Standard atomic weight 151.96. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Gadolinium atom (Gd) — Gadolinium (Gd), atomic number 64 — lanthanide, period 6. 64 protons, about 93 neutrons in its commonest isotope, and 64 electrons in shells 2, 8, 18, 25, 9, 2 ([Xe] 4f⁷ 5d¹ 6s²). Standard atomic weight 157.25. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Terbium atom (Tb) — Terbium (Tb), atomic number 65 — lanthanide, period 6. 65 protons, about 94 neutrons in its commonest isotope, and 65 electrons in shells 2, 8, 18, 27, 8, 2 ([Xe] 4f⁹ 6s²). Standard atomic weight 158.93. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Dysprosium atom (Dy) — Dysprosium (Dy), atomic number 66 — lanthanide, period 6. 66 protons, about 97 neutrons in its commonest isotope, and 66 electrons in shells 2, 8, 18, 28, 8, 2 ([Xe] 4f¹⁰ 6s²). Standard atomic weight 162.5. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Holmium atom (Ho) — Holmium (Ho), atomic number 67 — lanthanide, period 6. 67 protons, about 98 neutrons in its commonest isotope, and 67 electrons in shells 2, 8, 18, 29, 8, 2 ([Xe] 4f¹¹ 6s²). Standard atomic weight 164.93. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Erbium atom (Er) — Erbium (Er), atomic number 68 — lanthanide, period 6. 68 protons, about 99 neutrons in its commonest isotope, and 68 electrons in shells 2, 8, 18, 30, 8, 2 ([Xe] 4f¹² 6s²). Standard atomic weight 167.26. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Thulium atom (Tm) — Thulium (Tm), atomic number 69 — lanthanide, period 6. 69 protons, about 100 neutrons in its commonest isotope, and 69 electrons in shells 2, 8, 18, 31, 8, 2 ([Xe] 4f¹³ 6s²). Standard atomic weight 168.93. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Ytterbium atom (Yb) — Ytterbium (Yb), atomic number 70 — lanthanide, period 6. 70 protons, about 103 neutrons in its commonest isotope, and 70 electrons in shells 2, 8, 18, 32, 8, 2 ([Xe] 4f¹⁴ 6s²). Standard atomic weight 173.05. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))
Lutetium atom (Lu) — Lutetium (Lu), atomic number 71 — lanthanide, period 6. 71 protons, about 104 neutrons in its commonest isotope, and 71 electrons in shells 2, 8, 18, 32, 9, 2 ([Xe] 4f¹⁴ 5d¹ 6s²). Standard atomic weight 174.97. (≈ 0.1–0.5 nm across (the nucleus is ~100,000× smaller than drawn))