atomic-structure

Related Questions

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

  ---

• The order of density in nucleus is

  ---

• The energy of second Bohr orbit of the hydrogen atom is $–328$ kJ mol–1, hence the energy of fourth Bohr orbit would be

  ---

• The number of electrons in the nucleus of ${C^{12}}$ is

  ---

• One would expect proton to have very large

  ---