Basic Physics of Nuclear Medicine/Radioactive Decay MCQ

Point added for a correct answer:
Points for an incorrect answer:
Ignore the questions' coefficients:

1 Gamma-ray photons have:

	no mass and no electric charge
	no mass and an electric charge of +1
	no mass and an electric charge of +2
	no mass and an electric charge of -1

2 Electron Capture involves:

	an electron combining with a neutron
	a neutron being ejected from the nucleus
	an electron combining with a proton
	an electron being ejected from the nucleus

3 In Alpha Decay:

	Z and A are unchanged
	Z decreases by 4 and A decreases by 2
	Z decreases by 2 and A decreases by 4
	Z decreases by 4 and A decreases by 4

4 Isomeric Transition involves:

	the emission of a gamma-ray
	the conversion of a neutron to a proton
	the conversion of a proton to a neutron
	K-capture

5 In spontaneous fission:

	nuclear stability is always achieved
	the nucleus splits into 2 or 3 fragments
	the fragments are never radioactive
	the nucleus is unchanged

6 An alpha-particle consists of:

	one proton and two neutrons
	two protons and one neutron
	two protons and two neutrons
	one proton and one neutron

7 Internal Conversion involves:

	the emission of a gamma-ray
	the conversion of a neutron to a proton
	K-capture
	none of the above processes

8 Electron Emission involves the ejection of:

	a beta-minus particle
	an alpha-particle
	a beta-plus particle
	a proton and two neutrons

9 In Positron Emission:

	Z increases by 1 and A remains the same
	Z decreases by 1 and A remains the same
	Z remains the same and A decreases by 1
	Z remains the same and A increases by 1

10 Positron Emission involves the ejection of:

	an alpha-particle
	a beta-minus particle
	a beta-plus particle
	a proton and a neutron