What electron sublevel starts to fill after completion of the $$ 5 p $$ sublevel?

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After the completion of the $$ 5p $$ sublevel, the next electron sublevel to begin filling is the $$ 6s $$ sublevel.

**Electron Configuration Order Overview:**
The Aufbau principle outlines the order in which electrons fill the atomic orbitals based on increasing energy levels. Here's a simplified sequence for reference:

1. $$ 1s $$
2. $$ 2s $$
3. $$ 2p $$
4. $$ 3s $$
5. $$ 3p $$
6. $$ 4s $$
7. $$ 3d $$
8. $$ 4p $$
9. $$ 5s $$
10. $$ 4d $$
11. $$ 5p $$
12. **$$ 6s $$**
13. $$ 4f $$
14. $$ 5d $$
15. $$ 6p $$
16. $$ 7s $$
17. $$ 5f $$
18. $$ 6d $$

As seen, after filling the $$ 5p $$ sublevel, electrons next occupy the $$ 6s $$ sublevel before moving on to other higher energy sublevels like $$ 4f $$ or $$ 5d $$.

**Example:**
For elements beyond krypton (which has the electron configuration up to $$ 4p $$), electrons continue to fill the $$ 5s $$, $$ 4d $$, and $$ 5p $$ sublevels. Following the completion of $$ 5p $$, the subsequent electrons begin to fill the $$ 6s $$ sublevel.

**Conclusion:**
The $$ 6s $$ sublevel is the next to fill after the $$ 5p $$ sublevel is complete.

**Answer:** After the 5 p sublevel, electrons begin to fill the six‑s (6 s) orbital.
After the 5p sublevel is complete, electrons next fill the 6s sublevel.

What electron sublevel starts to fill after completion of the \( 5 p \) sublevel?

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