Secondary Catalogue

Series: Structure of the Atom


Application of Radioisotopes

Application of Radioisotopes

Radioisotopes are unstable atoms that emit radiation, and decay to form stable atoms. Some of their uses are as nuclear fuel and as tracers in medicinal fields.
Atomic Number and Mass Number

Atomic Number and Mass Number

The atomic number of an element, represented by the letter Z, is the number of protons present in one atom of the element. The total number of protons and neutrons present in one atom of an element is called its mass number and is represented by...Show More
Charged Particles in Matter and the Thomson Model of an Atom

Charged Particles in Matter and the Thomson Model of an Atom

According to JJ Thomson’s model for the structure of an atom, an atom consists of a positively-charged sphere and the electrons are embedded in it. The negative and the positive charges present are equal in magnitude so that the atom is...Show More
Isobars

Isobars

Isobars are atoms of different elements with the same mass number but different atomic numbers. Isobars have different electronic configuration and possess different chemical properties.
The Rutherford Model of an Atom

The Rutherford Model of an Atom

Ernest Rutherford conducted an experiment which is known as the “Rutherford alpha scattering experiment”, in which he allowed alpha particles from a radioactive source to fall on a thin gold foil. Based on his observations of this experiment,...Show More