CK-12 Foundation
Ck 12: Chemistry: Transition Metals
[Free Registration/Login may be required to access all resource tools.] Covers electron configurations of transition elements.
CK-12 Foundation
Ck 12: Chemistry: Valence Electrons
[Free Registration/Login may be required to access all resource tools.] Covers valence shell electrons and inner shell electrons.
CK-12 Foundation
Ck 12: Chemistry: Transition Metals
[Free Registration/Login may be required to access all resource tools.] Covers electron configurations of transition elements.