List of top Chemistry Questions on Periodic Trends In Properties Of Elements

The CORRECT order of acidity of the following compounds is

The maximum number of electrons that can be accommodated in the shell with n = 2 is______ (in integer). (Given: n = principal quantum number)

The CORRECT order of acidity of the following compounds is

The CORRECT order of electronegativity is

The maximum number of electrons that can be accommodated in the shell with n = 2 is______ (in integer). (Given: n = principal quantum number)

The CORRECT order of electronegativity is

Reactivity increasing order of the following metals will be

The correct order of electronegativity values of the following elements is

The orbital with highest penetration power is

The correct increasing order of ionic radii of the following \(Ce^{3+}, La^{3+}, Pm^{3+}\) and \(Yb^{3+}\) is

Would you expect the first ionization enthalpies for two isotopes of the same element to be the same or different? Justify your answer.

Considering the elements F, Cl, O and N, the correct order of their chemical reactivity in terms of oxidizing property is:

Considering the elements B, C, N, F, and Si, the correct order of their non-metallic character is:

Considering the elements B, Al, Mg, and K, the correct order of their metallic character is:

Predict the formula of the stable binary compounds that would be formed by the combination of the following pairs of elements.

1. Lithium and oxygen 
2. Magnesium and nitrogen 
3. Aluminium and iodine 
4. Silicon and oxygen
5. Phosphorus and fluorine 
6. Element 71 and fluorine

The increasing order of reactivity among group 1 elements is \(Li\) \(<Na\) \(<K\) \(<Rb\) \(<Cs\) 
whereas that among group 17 elements is \(F>Cl>Br>I\) Explain.

Use the periodic table to answer the following questions.

1. Identify an element with five electrons in the outer subshell.
2. Identify an element that would tend to lose two electrons. 
3. Identify an element that would tend to gain two electrons.
4. Identify the group having metal, non-metal, liquid as well as gas at the room temperature.

What are the major differences between metals and non-metals?

Describe the theory associated with the radius of an atom as it 

1. gains an electron 
2. loses an electro

Explain why cations are smaller and anions larger in radii than their parent atoms?

How does atomic radius vary in a period and in a group? How do you explain the variation?

What does atomic radius and ionic radius really mean to you?

Why do elements in the same group have similar physical and chemical properties?

Which element do you think would have been named by
(i) Lawrence Berkeley Laboratory
(ii) Seaborg's group?