Which of the following devices are often used to measure the radioactivity of a substance?

True or False: when added to a metal, acids will generally cause the metal to corrode.

True or false: an outbreeding plant is a plant that is pollinated from another plant.

True or False: humans come into contact with radiation in their day-to-day life.

The half-life for radioactive isotope “Z” is 11 days.  If a patient receives 75 mg of “Z”, how many days will it take for the radioactive dose to decay to 1.22 mg?

Which of the following answer choices best describes the characteristics of parenchyma, collenchyma, and sclerenchyma plant tissues?

True or False: the pH of a solution that contains 1.0 x 10-8 M H3O+ ions is 1.00.

True or False: exposure to gamma radiation on the skin can cause irritation similar to a sunburn.

True or False: in the balanced nuclear reaction below, the unknown species (i.e., XXX) is an alpha particle. 87Rb

The half-life for radioactive isotope “Y” is 11 days.  If a patient receives 112 mg of “Y”, how many days will it take for the radioactive dose to decay to 1.75 mg?