Tagged: The metalloid

November 2, 2014

The description of the modern periodic table, Why is the modern periodic table important?

The modern periodic table consists of 7 horizontal periods and 16 vertical groups (18 vertical columns). The elements of the modern periodic table are classified into 4 blocks (s, p, d, and f).

The Matter

September 18, 2014

Graduation of Electronegativity of elements in modern periodic table, Why is electronegativity important?

Electronegativity is the ability of the atom in the covalent molecule to attract the electrons of the chemical bond towards itself. There is an inverse relationship between the atomic size of the atom of...