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Thorium (Th) — element 90
reference
Atomic number 90. Symbol Th. Standard atomic weight 232.0377. The thorium atom carries 90 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_090
adjoining cards
- on the shelf of → The periodic table — the map of the elements — an element of the periodic table
- precedes → Actinium (Ac) — element 89 — the next element by atomic number (Z 89 → 90)
- 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 → Protactinium (Pa) — element 91 — the next element by atomic number (Z 90 → 91)
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