The subatomic particle with the least mass
(a) Carries a negative charge
(b) Carries a positive charge
(c) Plays no part in the atom's chemical reactions
(d) Is found only in the nucleus

Verified step by step guidance

Step 1: Identify the three main subatomic particles in an atom: electrons, protons, and neutrons.

Step 2: Recall the relative masses of these particles: electrons have the least mass, protons and neutrons have much greater mass.

Step 3: Understand the charges of these particles: electrons carry a negative charge, protons carry a positive charge, and neutrons are neutral (no charge).

Step 4: Consider the location of these particles: electrons orbit the nucleus, while protons and neutrons are located in the nucleus.

Step 5: Analyze the options in the problem based on the above information to determine which statement correctly describes the subatomic particle with the least mass.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.

Video duration:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Subatomic Particles and Their Masses

Atoms are composed of three main subatomic particles: electrons, protons, and neutrons. Among these, the electron has the least mass, approximately 1/1836 that of a proton or neutron, making it the lightest particle within the atom.

Electric Charge of Subatomic Particles

Each subatomic particle carries a specific electric charge: electrons are negatively charged, protons are positively charged, and neutrons have no charge. This charge influences how particles interact and bond chemically.

Role of Electrons in Chemical Reactions

Electrons, especially those in the outermost shell (valence electrons), are primarily responsible for chemical bonding and reactions. Protons and neutrons, located in the nucleus, do not directly participate in chemical reactions.

Recommended video: