ASNT Industrial Radiography Radiation Safety Practice Test 2025 - Free Radiation Safety Practice Questions and Study Guide

Question: 1 / 400

What is the charge and mass approximation of an electron?

Unit positive charge, mass equal to 1 AMU

Unit negative charge, mass approximately equal to 1/1840 AMU

The charge and mass approximation of an electron is accurately represented by stating that it has a unit negative charge and a mass approximately equal to 1/1840 AMU (atomic mass units). This is consistent with the known properties of electrons, which carry a negative elementary charge denoted as -1.

Regarding its mass, electrons are much lighter compared to protons and neutrons, which have masses conventionally close to 1 AMU. The mass of an electron is about 0.000548578 AMU, which simplifies to approximately 1/1840 of an AMU. Therefore, when considering both the charge and mass of an electron, option B reflects the fundamental characteristics accurately. This understanding is crucial in fields like atomic physics and chemistry, where the behavior of electrons plays a significant role in bonding and reactions.

Get further explanation with Examzify DeepDiveBeta

No charge, mass equal to 1 AMU

Unit positive charge, mass approximately equal to 1/1840 AMU

Next Question

Report this question

Download ASNT Industrial Radiography Radiation Safety Practice Test 2025 - Free Radiation Safety Practice Questions and Study Guide PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy