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An atom has a mass number of 23 and atom...

An atom has a mass number of 23 and atomic number 11. The number of protons are ______

A

23

B

11

C

12

D

44

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (EAMCET) (Exercise - VI (Miscellaneous))
  1. Alomost the entire mass of an atom is concentrated in the .

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  2. Electron was discovered by

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  3. An atom has a mass number of 23 and atomic number 11. The number of pr...

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  4. The mass of the atom is determined by .

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  5. The K, L and M shells of an atom are full. Its atomic number is .

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  6. Cathode rays are deflected towards.

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  7. The proton is heavier than an electron by .

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  8. Carbon-12 atoms has .

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  9. Chadwick got the Nobel Prize for the discovery of .

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  10. The volume of the nucleus of an atom when compared to the extra nuclea...

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  11. The correct set of four quantum numbers for the valence electron of ru...

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  12. Maximum number of electrons in a subshell wih l=3 and n=4 is

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  13. Which of the following do not represent ground state electronic config...

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  14. Which of the following statements about electrons is incorrect ?

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  15. The number of radial nodes for a 3p orbital is

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  16. Number of angular nodes for a 4d orbital is .

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  17. Which of the following is responsible to rule out the existence of def...

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  18. Total number of orbitals associated with third shel would be

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  19. When 6d orbital is complete, the entering electron goes into

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  20. Neutron is a fundamental particle which carries ?

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