Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) All nuclides of all the transuranium elements are radioactive.
(2) Alpha particles are the most massive and the slowest of the three types of naturally-occurring radioactive emissions.
(3) Four grams of an eight-gram sample of a radioactive nuclide will not have decayed after the elapse of one half life.

Question

Quizplus · Accepted Answer

1) All transuranium elements (elements with atomic numbers greater than 92) are indeed radioactive, as they do not have stable isotopes. 2) Alpha particles, consisting of two protons and two neutrons, are indeed the most massive and generally the slowest of the three common types of radioactive emissions (alpha, beta, and gamma). 3) After one half-life, half of the original amount of a radioactive substance will remain, so in this case, 4 grams of an 8-gram sample will indeed not have decayed.

Characterize EACH of the Three Given Statements as Being TRUE