add K

SELabNCYU · Dec 8, 2023 · efe12ad · efe12ad
1 parent e4bf261
commit efe12ad
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/1A_elements.txt b/1A_elements.txt
@@ -1,3 +1,4 @@
 H(1)
 Li(3)
 Na(11)
+K(19)