Write brief notes on isotope.
Write brief notes on isotope.
ISOTOPES: Isotopes are the atoms of the same element having different atomic masses.
The term 'isotope' was introduced by Soddy. This is a Greek word meaning same position (lsos = same, topes = position) since all the isotopes of an element occupy the same position in the periodic table. Isotopes of an element possess identical chemical properties but differ slightly in physical properties which depend on atomic mass.
The number of neutrons present in the nuclei of various isotopes of an element is always different.
The number of neutrons is determined by applying the formula N = A - Z
where A is the mass number and Z is the atomic number.
Hydrogen has three isotopes
Isotope of hydrogen Mass number(A) Atomic number(Z) Number of neutrons 1 1 0 2 1 1 3 1 2
In a neutral atom, the number of protons and the number of electrons are always the same, i.e., the electronic configuration of all the isotopes of an element is the same. Thus, all the isotopes of an element show the same chemical properties. However, the rates of reactions may be different for different isotopes of an element.
The isotopes of an element differ slightly in physical properties. The compounds formed by these isotopes will also have different physical properties.
ISOTOPES: Isotopes are the atoms of the same element having different atomic masses.
The term 'isotope' was introduced by Soddy. This is a Greek word meaning same position (lsos = same, topes = position) since all the isotopes of an element occupy the same position in the periodic table. Isotopes of an element possess identical chemical properties but differ slightly in physical properties which depend on atomic mass.
The number of neutrons present in the nuclei of various isotopes of an element is always different.
The number of neutrons is determined by applying the formula N = A - Z
where A is the mass number and Z is the atomic number.
Hydrogen has three isotopes
| Isotope of hydrogen | Mass number(A) | Atomic number(Z) | Number of neutrons |
| 1 | 1 | 0 | |
| 2 | 1 | 1 | |
| 3 | 1 | 2 |
In a neutral atom, the number of protons and the number of electrons are always the same, i.e., the electronic configuration of all the isotopes of an element is the same. Thus, all the isotopes of an element show the same chemical properties. However, the rates of reactions may be different for different isotopes of an element.
The isotopes of an element differ slightly in physical properties. The compounds formed by these isotopes will also have different physical properties.
