Don't forget to check your email for the activation link. Otherwise, you will not be able to login until you activate your account.
Use your email and password to login.
Reset your password.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Nuclear physics is a branch of physics that deals with the constituents, structure, behaviour and interactions of atomic nuclei. This branch of physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons.
Explain how an “excited” hydrogen atom is able to emit radiations of different wavelengths.