Questions in nuclei

Select	Question
	The mass defect per nucleon is called
	Nuclear forces are
	$\pi$ mesons can be
	In helium nucleus, there are
	Antiparticle of electron is
	The binding energy per nucleon is maximum in the case of
	Isotopes are atoms having
	The mass of an $\alpha$ -particle is
	If the binding energy per nucleon in $L{i^7}$and $H{e^4}$ nuclei are respectively 5.60 MeV and 7.06 MeV, then energy of reaction $L{i^7} + p \to 2{\;_2}H{e^4}$ is
	The mass number of He is 4 and that for sulphur is 32. The radius of sulphur nucleus is larger than that of helium, by times