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Erbium (Er) — element 68
reference
Atomic number 68. Symbol Er. Standard atomic weight 167.259. The erbium atom carries 68 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_068
adjoining cards
- on the shelf of → The periodic table — the map of the elements — an element of the periodic table
- precedes → Holmium (Ho) — element 67 — the next element by atomic number (Z 67 → 68)
- 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 → Thulium (Tm) — element 69 — the next element by atomic number (Z 68 → 69)
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