An element of atomic weight 40 has 2, 8, 8, 2 as the electronic configuration. Which one of the following statements regarding this element is not correct?

it belongs to 4th period of the periodic table

it belongs to II group of the periodic table

the formula of its oxide is \[M{{O}_{2}}\]

An element of atomic weight 40 has 2, 8, 8, 2 as the electronic config

1.	An element of atomic weight 40 has 2, 8, 8, 2 as the electronic configuration. Which one of the following statements regarding this element is not correct?
A.	it belongs to II group of the periodic table
B.	it has 20 neutrons
C.	the formula of its oxide is \[M{{O}_{2}}\]
D.	it belongs to 4th period of the periodic table
Answer» D. it belongs to 4th period of the periodic table

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An element of atomic weight 40 has 2, 8, 8, 2 as the electronic configuration. Which one of the following statements regarding this element is not correct?

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