The samples of radium chloride glowed with a faint blue light in the dark, caused by the intense radioactiyity exciting the surrounding air. la]I Describe how alpha particles interact with atoms as they pass through air, and explain why alpha particles would not pass through the sides of a glass test tube. leUse the properties of beta and gamma radiation to explain why these two types of radiation have greater penetrating power but cause less ionisation than alpha particles. chI Assess the hazards of the conditions under which Marie Curie was working when analysing the radioactive elements found in pitchblende. Answer these questions by proyiding detailed, linked and thorough explanations through wider reading and references