Classification ...

Match the atomic numbers given in column I with the block in which the element is placed in colurim II and mark the appropriate choice.

Atomic numbers of few elements are given below. Which of the pairs belongs to s-block?

Which of the following have the same number of electrons in outermost shell?

An element has the electronic configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s².
What will be its position in.the periodic table?

Fill in the blanks bypicking the correct option.
There are _____ groups and _____ periods in the extended form of periodic table. The group, all members of which are in gaseous state under ordinary conditions is _____ group. Most electropositive elements belong to _____ group.

Examples of elements belonging to s, p, d or f-block are given below. Identify the wrong example,

Electronic configurations of few elements are given below. Mark the incorrect match.

Few general names are given along with their valence shell configurations. Mark the incorrect name.

Electronic configuration of four elements is given below. Which of the following does not belong to the same group?

There are two rows of inner transition elements in the periodic table each containing 1414 elements. The reason for this may be

Part of the periodic table showing p-block is depicted below. What are the elements shown in the zig-zag boxes called? What is the nature of the elements outside this boundary on the right side of the table?

The electronic configuration of few elements is given below. Mark the statement which is not correct about these elements.
(i) 1s²2s²2p⁶3s¹
(ii) 1s²2s²2p⁵
(iii) 1s²2s²2p⁶
(iv) 1s²2s²2p³

Which of the following is not correct statement for periodic classification of elements?

Indicate the wrong statement on the basis of the periodic table.

Which is the most non-metallic element among the following?