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36 questions
31
atomic stucture
Easy
+1.0
-0.33
The atoms, in which the number of protons is same but the number of neutrons is diff erent, are known as
32
atomic stucture
Easy
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-0.33
Isotopes of an element diff er in :
33
atomic stucture
Easy
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-0.33
Isotopes are those atoms of the same element which have
34
atomic stucture
Easy
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-0.33
Isotopes is that nuclei of atomic nucleus in which
35
atomic stucture
Easy
+1.0
-0.33
Radioactivity is measured by
36
atomic stucture
Easy
+1.0
-0.33
Radioactivity was discovered by