Ca has atomic No. 20 and atomic weight 40. Which of the following statements is not correct about Ca atom

Options :
  1. the number of electrons is same as the number of neutrons
  2. the number of nucleons is double of the number of electrons
  3. the number of protons is half of the number of neutrons
  4. the number of nucleons is double of the atomic number
Answer and Explanation :-

Answer: Option 3


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : If electron, hydrogen, helium and neon nuclei are all moving with the velocity of light, then the wa...

Next Question : The principal quantum number represents

Click here for online test on Structure of Atom


 (Getemail alerts when others member replies)

For we live with those retrievals from childhood that coalesce and echo throughout our lives, the way shattered pieces of glass in a kaleidoscope reappear in new forms and are songlike in their refrains and rhymes, making up a single monologue. We live permanently in the recurrence of our own stories, whatever story we tell.
-Michael Ondaatje Divisadero