Chemistry Question Bank

The number of elements present in fifth period of Periodic Table is

When a chlorine atom becomes chloride ion, its size

The electronic configuration of the element which is just above the element with atomic number 43 in the same group is ............

The element with the lowest atomic number that has a ground state electronic configuration of (n-1) d6ns2 is located in the

Which of the following pairs has almost the same atomic radii?

ns and ns outermost electronic configuration belongs to the

The element with atomic number 57 belongs to

The last element of the p-block in the 6th period is represented by the outermost electronic configuration.

Identify the correct order of the size of the following

The correct order of second I.E. of C, N, O and F are in the order

The property of attracting electrons by the halogen atoms in a molecule is called (JCECE 2010)

The compound not acting as a reducing agent is (Manipal 2014)

Which of the following is not a Dobereiner’s triad?

Elements whose outer electronic configuration vary from ns2np1 to ns2np6 constitute

The transition elements have a characteristic electronic configuration which can be represented as

The elements with atomic numbers 9, 17, 35, 53, 85 are all

Molybdenum metal is related to which block?

Which of the following orders of ionic radii is correctly represented? [AIPMT 2014]

Which of the following pairs has both members from the same group of periodic table

Which one of the following pair of elements has similar properties?

The element with highest I.E. is:

The element with lowest electron gain enthalpy is:

Assertion: Electron gain enthalpy becomes less negative as we go down a group. Reason: The size of the atom increases on going down the group and the added electron would be farther from the nucleus.

The most ionic compound will be formed between:

Which of the following properties shows a gradual decrease with an increase in atomic number across a period in the periodic table?