Question
Statement 1: Electron capture occurs more often than positron emission in heavy elements
Statement 2: Heavy elements exhibit radioactivity
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
Statement 1 is True, Statement 2 is False
Statement 1 is False, Statement 2 is True
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
Statement 1 is True, Statement 2 is False
Statement 1 is False, Statement 2 is True
The correct answer is: Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
Electron capture occurs more often than positron emission in heavy elements. This is because if positron emission is energetically allowed, electron capture is necessarily allowed, but the reverse is not true, when electron capture is energetically allowed, positron emission is not necessarily allowed
Related Questions to study
Statement 1: 
from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells
Statement 2: The energy 
particle emitted in the decay of 
damage to bone marrow
Statement 1: from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells
Statement 2: The energy particle emitted in the decay of damage to bone marrow
Statement 1: from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells.
Statement 2: The energetic particles emitted in the decay of damage the bone marrow.
Statement 1: from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells.
Statement 2: The energetic particles emitted in the decay of damage the bone marrow.
Statement 1: Half-life of a certain radioactive element is 100 days. After 200 days, fraction left undecayed will be 50%
Statement 2: 
, where symbols have usual meaning.
Statement 1: Half-life of a certain radioactive element is 100 days. After 200 days, fraction left undecayed will be 50%
Statement 2: , where symbols have usual meaning.
Statement 1: According to classical theory, the proposed path of an electron in Rutherford atom model will be parabolic
Statement 2: According to electromagnetic theory an accelerated particle continuously emits radiation
Statement 1: According to classical theory, the proposed path of an electron in Rutherford atom model will be parabolic
Statement 2: According to electromagnetic theory an accelerated particle continuously emits radiation
Statement 1: Energy is released in nuclear fission
Statement 2: Total binding energy of the fission fragments is larger than the total binding energy of the parent nucleus
Statement 1: Energy is released in nuclear fission
Statement 2: Total binding energy of the fission fragments is larger than the total binding energy of the parent nucleus
Statement 1: Amongst alpha, beta and gamma rays, 
particle has maximum penetrating power
Statement 2: The alpha particle is heavier than beta and gamma rays
Statement 1: Amongst alpha, beta and gamma rays, particle has maximum penetrating power
Statement 2: The alpha particle is heavier than beta and gamma rays
Statement 1: 
undergoes 
decays, 
decays and 
decays and the daughter product is 
Statement 2: In decay the mass number decreases by 4 and atomic number decrease by 2. In decay the mass number remains unchanged, but atomic number increases by 1 only
Statement 1: undergoes decays, decays and decays and the daughter product is
Statement 2: In decay the mass number decreases by 4 and atomic number decrease by 2. In decay the mass number remains unchanged, but atomic number increases by 1 only
Statement 1: Balmer series lies in the visible region of electromagnetic spectrum.
Statement 2: 
where 
Statement 1: Balmer series lies in the visible region of electromagnetic spectrum.
Statement 2: where
Statement 1: The positively charged nucleus of an atom has a radius of almost 
Statement 2: In -particle scattering experiment, the distance of closest approach for particles is 
Statement 1: The positively charged nucleus of an atom has a radius of almost
Statement 2: In -particle scattering experiment, the distance of closest approach for particles is
Statement 1: The binding energy per nucleon, for nuclei with atomic mass number , decreases with
Statement 2: The nuclear forces are weak for heavier nuclei
Statement 1: The binding energy per nucleon, for nuclei with atomic mass number , decreases with
Statement 2: The nuclear forces are weak for heavier nuclei
Statement 1: 
represents fusion.
Statement 2: The above case is a decay.
Statement 1: represents fusion.
Statement 2: The above case is a decay.
On reductive ozonolysis yields
