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Thulium (Tm) — element 69
reference
Atomic number 69. Symbol Tm. Standard atomic weight 168.93422. The thulium atom carries 69 protons in its nucleus; its place in the periodic table is fixed by that count. Verified reference data.
source
Verified reference — chemistry
card id
card_ref_el_069
adjoining cards
- on the shelf of → The periodic table — the map of the elements — an element of the periodic table
- precedes → Erbium (Er) — element 68 — the next element by atomic number (Z 68 → 69)
- on the shelf of → The created order — the science of the floor — an element of the created order (Genesis 1) — matter God spoke into being
- precedes → Ytterbium (Yb) — element 70 — the next element by atomic number (Z 69 → 70)
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