Advertisements
Advertisements
प्रश्न
According to Dalton’s Atomic Theory, atoms of the same element are identical in all respects. But according to the Modern Atomic Theory, this postulate is proved wrong. Explain.
उत्तर
According to modern atomic theory atoms of the same element may not be alike in all respect.
e.g. isotopes of chlorine 3517 Cl and 3717 Cl have different atomic masses 35 and 37. This proves Dalton’s Atomic Theory wrong.
APPEARS IN
संबंधित प्रश्न
State one use of radioactive isotopes in medicine.
In a sample of ethyl ethanoate (CH3COOC2H5), the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it ?
Which of the following pairs are isotopes ? Give reasons for your choice :
(i) `""_26^58"A"`, `""_28^58"B"` or (ii) `""_35^79"X"`, `""_35^80"Y"`
What are isotones? Give one example.
______ isotope is used in the nuclear reactors.
Define isotopes. Give example.
Which statement is not correct about the isotopes of an element?
In two isotopic species, a number of protons is the same but the number of ______ is different.
Isotopes of elements have the same chemical properties.
Distinguish isotopes from isobar.