Atoms And Nuclei Question 287
Question: The energy difference between the first two levels of hydrogen atom is 10.2 eV for another element of atomic number 10 and mass number 20, this will be
Options:
A) 2040 eV
B) 0.201 eV
C) 510 eV
D) 1020 eV
Show Answer
Answer:
Correct Answer: D
Solution:
-
For H atom
