why atomic no. is more preferable than atomic mass ?
atomic no. tells the electronic configuration...
with electronic configuration it is easy to find
- group number
- period number
- valency electron
- valency
atomic number of an element determines its electronic configuration and in turn the arrangement of elecrons in orbits ..
as chemical properties r dependant on electron arrangement .. so atomic number determines the chemical properties ..
The mass number is the total of protons and neutrons in the nucleus. An element has a distinctive Atomic number, but many elements can have the same mass number. For example Carbon-12 has an atomic number of 6 and a mass number of 12. Nitrogen-12 has an atomic number of 7 but the mass number is 12. Oxygen-12 has an atomic number of 8 but the mass number is still 12.
Hence atomic number is more preferable than atomic mass.
atomic no. tells the electronic configuration...
with electronic configuration it is easy to find
- group number
- period number
- valency electron
- valency
atomic number of an element determines its electronic configuration and in turn the arrangement of elecrons in orbits ..
as chemical properties r dependant on electron arrangement .. so atomic number determines the chemical properties ..
The mass number is the total of protons and neutrons in the nucleus. An element has a distinctive Atomic number, but many elements can have the same mass number. For example Carbon-12 has an atomic number of 6 and a mass number of 12. Nitrogen-12 has an atomic number of 7 but the mass number is 12. Oxygen-12 has an atomic number of 8 but the mass number is still 12.
Hence atomic number is more preferable than atomic mass.
