A) Most of the space in an atom is empty
B) The total number of neutrons and protons is always equal in a neutral atom
C) The total number of electrons and protons in an atom is always equal
D) The total number of electrons in any energy level can be calculated by the formula \[2{{n}^{2}}\]
Correct Answer: B
Solution :
e.g., In \[_{17}C{{l}^{35}}\]no, of p =17 but no. of n= 35 - 17 = 18
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