2019 marks the 150th anniversary of the Periodic Table, a unique tool, enabling scientist to predict the appearance and properties of matter on the Earth and in the the Universe. Different elements ...

To account for this, most periodic tables hive off the elements making up this f-block, putting it below the table, leaving a gap in group 3. Fair enough. But there is debate over which of the ...

If you're a student hoping to conquer chemistry—or just like chemistry as a hobby—web site Ptable gives you a browser based periodic table that lets you view element information, properties ...

Predictive power. Gallium. Mendeleev left blank spaces in his original periodic table so that he could properly line up the known elements. Gallium, element 31, was his first gap to be filled, in ...

CBSE Class 12th Chapter, The p-Block Elements (Group 15) carries 08 Marks in board exam.Experts of Jagranjosh.com offer the best practice material that covers all important questions so that ...

A t the far end of the periodic table is a realm where nothing is quite as it should be. The elements here, starting at atomic number 104 (rutherfordium), have never been found in nature. In fact ...

The periodic table is arranged into columns and blocks that are supposed to mirror how elements’ outermost electrons are arrayed. Elements are grouped into sections called s, p, d and f blocks ...