Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
German
⇄
English
French
Polish
Russian
Spanish
+
G
o
o
g
l
e
|
Forvo
|
+
Lückenelemente
n
This HTML5 player is not supported by your browser
chem.
transition elements
Add
|
Report an error
|
Get short URL
