Number Associated With the Periodic Table Halogens

This page is the CodyCross answer for the clue below from Hobbies, Group 1402, Puzzle 2 (Creative Writing).

Question is: Number Associated With the Periodic Table Halogens

and the answer is: SEVENTEEN

Word Meaning:

SEVENTEEN — The cardinal number occurring after sixteen and before eighteen, represented in Roman numerals as XVII and in Arabic numerals as 17.

Definitions from Wiktionary.