MASS NUMBER (A)||ATOMIC NUMBER (Z) |ISOTOPES|I ISOBAR
ATOMIC NUMBER (Z)
The atomic number is the number of protons present in the nucleus of an
atom or number of electrons revolving around the nucleus in an
atom.
Based on the carbon standard the atomic mass of an element may
be defined as the ratio between the mass of one atom of the element and
1/12th of mass of an atom of carbon
Atomic number= No of protons=No of electrons
MASS NUMBER (A)
The mass number of an element is given by the total number of protons and
neutrons present in the nucleus of an atom. A= (P+N)
Therefore the number of neutrons is = A-Z.
ISOTOPES
The isotopes are atoms of the same elements having the same atomic
number but different mass number.
e.g. Isotope of oxygen: 8O16, 8O17, 8O18.
ISOBAR
Isobars are the atoms of different elements having the same mass number
but different atomic number.
e.g. 92U234, 91Pa234
Read More:What is Matter? Proton,Electron,Neutron
The atomic number is the number of protons present in the nucleus of an
atom or number of electrons revolving around the nucleus in an
atom.
Based on the carbon standard the atomic mass of an element may
be defined as the ratio between the mass of one atom of the element and
1/12th of mass of an atom of carbon
Atomic number= No of protons=No of electrons
MASS NUMBER (A)
The mass number of an element is given by the total number of protons and
neutrons present in the nucleus of an atom. A= (P+N)
Therefore the number of neutrons is = A-Z.
ISOTOPES
The isotopes are atoms of the same elements having the same atomic
number but different mass number.
e.g. Isotope of oxygen: 8O16, 8O17, 8O18.
ISOBAR
Isobars are the atoms of different elements having the same mass number
but different atomic number.
e.g. 92U234, 91Pa234
Read More:What is Matter? Proton,Electron,Neutron
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