4.1 Development of Periodic Table of Elements

Report 1 / 5

The symbols of elements in the answer option do not represent the actual symbols.

Which of the following belong in the same group in the Periodic Table?

I.		\(\begin{array}{\|l\|} \hline1\\ \hspace{3mm}\Huge{A}\\ 1\\ \hline \end{array} \)

II.		\(\begin{array}{\|l\|} \hline 7\\ \hspace{3mm}\Huge{B}\\ 3\\ \hline \end{array} \)

III.		\(\begin{array}{\|l\|} \hline 40\\ \hspace{3mm}\Huge{C}\\ 20\\ \hline \end{array} \)

IV.		\(\begin{array}{\|l\|} \hline 35\\ \hspace{3mm}\Huge{D}\\ 17\\ \hline \end{array} \)

Difficulty Level: Medium

Report 2 / 5

What is the period and group of element \(Z\) as shown in the diagram?

Difficulty Level: Medium

Report 3 / 5

The group and period of element \(Y\) in the Periodic Table are Group 17 and Period 3.

What is the electron arrangement of element \(Y\)?

Difficulty Level: Easy

Report 4 / 5

The group and period of element \(Y\) in the Periodic Table are Group 1 and Period 3.

The group and period of element \(X\) in the Periodic Table are Group 1 and Period 2.

Which of the following is not the difference of element \(Y\) and \(X\)?

Difficulty Level: Medium

Report 5 / 5

The nucleon number and the neutron number of element \(Z\) is \(20\) and \(10\).

What is the group of element \(Z\) in the Periodic Table?

Difficulty Level: Medium