Which form of nuclear radiation is extremely penetrating and can be only blocked by a block of lead that is several centimetres thick?

Which type of radiation emitted by radioactive nuclei is the slowest moving and least penetrating?

Lead aprons used in radiology primarily protect against what type of radiation?Question 51Select one:a.Alpha particlesb.Gamma raysc.Scatter radiationd.Beta particles

Which of the following types of radiation has the greatest penetrating ability?*1 pointgamma raysbeta raysalpha raysultraviolet rays

Many protection measures rely on the use of lead. What is it about lead that makes it effective as a protective material?Group of answer choicesThe most common isotopes of lead are not radioactive, so it is not a source of radiation.Lead is corrosion resistant, and is not weakened by being continually exposed to radiation.Lead has a relatively low melting point and is ductile. This makes the casting of lead into shields easy.Lead has a high proton number and a high density. It is therefore very effective at attenuating radiation.Lead is relatively abundant making it the most cost effective material to use as a shielding.

Read the description below of the experiment into the penetrating power of radiation. What type of radiation was Source 1 emitting?