Metaloids also non-metals.

johnmay · johnmay · commit 33a435e2f30d · 2019-07-28T13:50:25.000+01:00
diff --git a/base/core/src/main/java/org/openscience/cdk/config/Elements.java b/base/core/src/main/java/org/openscience/cdk/config/Elements.java
@@ -534,6 +534,14 @@ public static boolean isMetal(int atno) {
             case 54: // Xe
             case 86: // Rn
                 return false;
+            case 5:   // B
+            case 14:  // Si
+            case 32:  // Ge
+            case 33:  // As
+            case 51:  // Sb
+            case 52:  // Te
+            case 85:  // At
+                return false;
         }
         return true;
     }
