an element m of atomic weight 40 has 2 8 8 2 as the

An element $$\left( M \right)$$ 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 4^th period of the periodic table.

Answer : The formula of its oxide is $$M{O_2}.$$

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Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

Releted Question 1

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is

A. $$C > N > O > F$$

B. $$O > N > F > C$$

C. $$O > F > N > C$$

D. $$F > O > N > C$$

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Releted Question 2

The element with the highest first ionization potential is

A. boron

B. carbon

C. nitrogen

D. oxygen

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Releted Question 3

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

A. $$14.6,13.6\,$$

B. $$13.6,14.6$$

C. $$13.6,13.6$$

D. $$14.6,14.6$$

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Releted Question 4

Atomic radii of fluorine and neon in $$\mathop {\text{A}}\limits^ \circ $$ngstorm units are respectively given by

A. $$0.72,1.60$$

B. $$1.60,1.60\,$$

C. $$0.72,0.72\,\,$$

D. None of these values

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An element $$\left( M \right)$$ 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?

Releted MCQ Question on
Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is

The element with the highest first ionization potential is

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

Atomic radii of fluorine and neon in $$\mathop {\text{A}}\limits^ \circ $$ngstorm units are respectively given by

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Classification of Elements and Periodicity in Properties

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An element $$\left( M \right)$$ 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?

Releted MCQ Question on Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is

The element with the highest first ionization potential is

The first ionisation potential in electron volts of nitrogen and oxygen atoms are respectively given by

Atomic radii of fluorine and neon in $$\mathop {\text{A}}\limits^ \circ $$ngstorm units are respectively given by

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Releted MCQ Question on
Inorganic Chemistry >> Classification of Elements and Periodicity in Properties

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Classification of Elements and Periodicity in Properties