Which of the following allotropes of Carbon is a conductor of electricity?

തന്നിരിക്കുന്നവയിൽ ആവർത്തനപ്പട്ടികയിൽ പതിനഞ്ചാം ഗ്രൂപ്പിൽ ഉൾപ്പെടാത്ത മൂലകം ഏത് ?

Element having the name of Earth?

The international year of periodic table was celebrated in ——————— year.

The radioactive Gaseous element?

The metal which shows least expansion?

Which element in the Periodic Table has the highest atomic number and highest atomic mass of all known elements?

Which one of the following elements is very rare?

The liquid non metal at room temperature?

What was the first metal to be named after a person? It is usually used to produce bright light in cinema projectors.

How many chemical elements are there on the first row of the periodic table?

Sodium belongs to which element group?

Which of the following chemical elements has the highest electron affinity?

When we move from right to left across the periodic table:

When it comes to electron negativity, which of the following statements can be applied to halogens?

When we move from the bottom to the top of the periodic table:

Aluminium would have similar properties to which of the following chemical elements?

What is the first element on the periodic table?

Which of the following chemical elements is not a halogen?

What is the name of the Vertical columns of elements on the periodic table?

Which was the first element that was made artificially?

In periodic table group 17 represent

Which of the following is not a metalloid?

In modern periodic table Group number 13 is named as ?

Modern periodic table was prepared by

Number of elements present in group 18 is?

The unknown element named as ‘eka-aluminium' by Mendeleev, was named as --- in the modern periodic table?

How many elements were present in Mendeleev’s periodic table?

Atomic number of Uranium is?

Which of the following scientist arranged the elements on the basis of Octave theory?

The first attempt to classify elements as triads was done by?

Total how many elements are present in modern periodic table?

Atomic number of Gold (Au) is?

Lanthanides belong to which block?

Elements from atomic number 37 to 54 belong to which period?

Modern periodic table was discovered by?

Noble gases belong to which of the following groups of the periodic table?

An element X belongs to the 3rd period and 1st group of the periodic table. What is the number of valence electrons in its atom?

Which of the following elements has 2 shells and both are completely filled?

Which group elements are called transition metals?

The most reactive element in group 17 is :

The electronic configuration of an element M is 2, 8, 2. In modern periodic table, the element M is placed in

The total number of lanthanide elements is

Which of the following among alkali metals is most reactive?

The elements with atomic numbers 2, 10, 18, 36, 54 and 86 are all

First of all the elements were classified by

The calculation of electronegativity was first done by

What happens to the electropositive character of elements on moving from left to right in a periodic table?

Metal with maximum density

Which of the following forms the basis of the modern periodic table?