A. The nucleus of a hydrogen atom is identical with a proton
B. A, β-ray particle is identical with an electron
C. Mass of an electron is about 1/1800th of the lightest nucleus
D. Positron is heavier than a proton
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Pick out the wrong statement?
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Pick out the wrong statement?
A. Atoms with same number of nucleons but different number of protons are called isobars
B. Atoms with same number of protons but different number of nucleons are called isoters
C. Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays
D. The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide
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A. α-particle emission from a radioactive element makes it electrically negative
B. β-particle emission from a radioactive element makes it electrically positive
C. A radioactive element having a half life period of 20 years will completely disintegrated in 40 years
D. The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration
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