Electron Configuration of Tellurium (Te)
Tellurium (Te, Z = 52) has the electron configuration [Kr] 4d^10 5s^2 5p^4, filling 5 shells with 2, 8, 18, 18, 6 electrons.
This is the fast lane: one page, one fact, zero digressions. Read the quick answer, check the table, and if your exam needs the full derivation, the sections below walk through it step by step — in Bangla and English, like every page here. Need the whole picture instead — history, characteristics, uses, exam questions? The full Tellurium page is one click away.
Tellurium: every subshell, one by one
The table below unpacks [Kr] 4d^10 5s^2 5p^4 line by line, so you can watch Tellurium's 52 electrons take their seats in order of increasing energy.
| Subshell | Electrons | Total so far |
|---|---|---|
| [Kr] | 0 | 36 |
| 4d | 10 | 46 |
| 5s | 2 | 48 |
| 5p | 4 | 52 |
Electrons per shell (K, L, M…)
Grouped by principal quantum number instead of subshell, Tellurium carries 2 in shell 1, 8 in shell 2, 18 in shell 3, 18 in shell 4, 6 in shell 5. The outermost shell holds 6 electrons — the ones that do all the bonding.
How to derive it yourself
Follow the aufbau order (1s → 2s → 2p → 3s → 3p → 4s → 3d → …), pouring 52 electrons into orbitals of capacity 2 (s), 6 (p), 10 (d) and 14 (f) until none remain. Write the filled inner shells as the nearest noble-gas core — for Tellurium that gives [Kr] 4d^10 5s^2 5p^4.
Students also ask
How many electron shells does Tellurium have?
Tellurium is in period 5, so its electrons occupy 5 shells, holding 2, 8, 18, 18, 6 electrons respectively.
How many valence electrons does Tellurium have?
Its outermost shell holds 6 electrons, so Tellurium has 6 valence electrons that take part in bonding.
What is the noble-gas shorthand for Tellurium?
The shorthand form is exactly [Kr] 4d^10 5s^2 5p^4.