Question

Fill in the blanks:
1.The maximum numbers of electrons that can be present in third energy shell are______.
2.The number of valence electrons in ²⁴Mg₁₂ is__________.
3.The outermost shell cannot have more than _______electrons in a stable atom.

Answer 1

1.The maximum numbers of electrons that can be present in third energy shell are 18.

2.The number of valence electrons in ²⁴Mg₁₂ is 2

3.The outermost shell cannot have more than 8 electrons in a stable atom.