A) Actinium B) uranium C) thorium D) lathanium E) samarium
A) lathanium B) sodium C) erbium D) radium E) neptunium
A) mass number B) protons C) electrons D) neutrons E) atomic number
A) gamma B) alpha C) beta D) electron capture E) positron
A) protons only. B) electrons and neutrons C) protons and neutrons D) electrons E) protons and electrons
A) Fission B) fusion C) half -life D) regression E) degradation
A) 5 protons B) 4 protons C) 6 protons D) 3 protons E) 2 protons
A) fermium B) thorium C) nobelium D) neptunium E) the same element
A) positron emission B) beta decay C) transfer of electrons D) alpha decay E) gamma decay
A) atomic mass and atomic number remains the same. B) atomic number will change. C) Atomic mass will change. D) Both atomic mass and atomic number will change. E) atomic number will change, but atomic mass will not change.
A) Gamma ray B) Neutron emission C) Alpha particle D) Electron capture E) Beta particle
A) 15.8 mg B) .33 mg C) 15 mg D) 33.0 mg E) 12.5 mg
A) 50 mg B) 2.5g C) 80g D) 0.25g E) 25g
A) Nucleus changes to become stable B) All options listed. C) Atom emits radiation D) Emits radioactive particles E) Nucleus is unstable due to uneven proton to neutron ratio
A) Zero life B) Nuclear fusion C) Half-life D) Dead time E) Full-life
A) Both options listed. B) An entirely different element. C) Neither option listed. D) different isotope of the same element.
A) nuclear mass B) isotopes C) nuclear decay D) nuclide E) radon
A) A uranium atom is split apart into lighter elements B) Two hydrogen atoms are combined to form a helium atom C) A plutonium atom is used to start a chain reaction that detonates a nuclear weapon D) Two hydrogen atoms bond with an oxygen atom to form a water molecule
A) positron B) alpha C) electron capture D) Beta E) gamma
A) fusion reaction B) Fission reaction C) neutralization D) Combustion E) decomposition
A) 6.25% B) 25.0% C) 3.125% D) 12.5%
A) alpha particle B) neutron C) gamma particle D) Beta particle
A) 10Ne5 B) 10B5 C) 6Li3 D) 6C3
A) electron capture B) positron C) Beta decay D) alpha E) gamma
A) 50Y22 B) 46Y22 C) 54Y26 D) 48Y20 |