An atom of atomic weight 40 has 2,8,8,2 as its electronic arrangement. The following statement regarding this atom is not correct
A It belongs to Il group of the periodic table
B It has 20 neutrons
С The formula of its oxide is MO 2
D It belongs to 4th period of the periodic table
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It belongs to II group of the periodic table as it has 2 electron in outermost orbital.
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