Question
Question 15 What is the furthest distance that alpha radiation can travel in air? Select one answer only. A few millimetres A few centimetres A few metres
Answer
4.1
(192 Votes)
Lorraine
Advanced · Tutor for 1 years
Answer
A few centimetres
Explanation
## Step 1: Understanding the attributes of alpha radiationAlpha radiation, also known as alpha particles, represent a more dense type of radiation with larger particles, which are actually the nuclei of helium atoms (two protons and two neutrons). Because they are heavy, highly charged and relatively slow moving compared to other forms of radiation, they interact with matter frequently and intensely. ## Step 2: Applying it to distance in airGiven the substantial size and slow movement of alpha particles, they cannot travel very far, especially in a gaseous environment like air. They are limited to only a short distance. From this information, it can be inferred which of the available choices should make the most sense.