December 1, 2015

Homework Help: chemistry

Posted by hriday on Monday, January 19, 2009 at 7:55am.

the ground stste energy of H- atom is -13.6 eV. the energy needed to ionise H- atom from its second excited state is

1.51 eV
3.4 eV
13.6 eV
12.1 eV

Answer this Question

First Name:
School Subject:

Related Questions

More Related Questions