Skip to main content
Ch.2 - Atoms, Molecules, and Ions
Chapter 2, Problem 22a

Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (a) The nucleus has most of the mass and comprises most of the volume of an atom.

Verified step by step guidance
1
The nucleus of an atom contains protons and neutrons, which account for most of the atom's mass.
The volume of an atom is mostly empty space, with electrons occupying this space in electron clouds.
The nucleus is very small compared to the overall size of the atom, meaning it does not comprise most of the atom's volume.
Therefore, the statement is false. The nucleus has most of the mass but comprises very little of the volume of an atom.
Corrected statement: The nucleus has most of the mass but comprises very little of the volume of an atom.

Verified Solution

Video duration:
2m
This video solution was recommended by our tutors as helpful for the problem above.
Was this helpful?

Key Concepts

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

Atomic Structure

Atoms consist of a nucleus, which contains protons and neutrons, and is surrounded by electrons in orbitals. The nucleus is dense and contains most of the atom's mass, while the electron cloud occupies most of the atom's volume, making it largely empty space.
Recommended video:
Guided course
02:10
Atom Structure

Mass vs. Volume in Atoms

While the nucleus accounts for the majority of an atom's mass due to the presence of protons and neutrons, it occupies a very small volume compared to the overall size of the atom. The electron cloud, which is much larger in volume, contributes negligibly to the mass.
Recommended video:

True/False Statements in Science

In scientific inquiry, evaluating statements as true or false requires understanding the underlying principles. A false statement can often be corrected by identifying the inaccuracies and providing the correct information based on established scientific knowledge.
Recommended video:
Guided course
01:11
Third Law of Thermodynamics Example
Related Practice
Textbook Question

The radius of an atom of copper (Cu) is about 140 pm. (b) How many Cu atoms would have to be placed side by side to span a distance of 5.0 mm?

Textbook Question

The radius of an atom of copper (Cu) is about 140 pm. (c) If you assume that the Cu atom is a sphere, what is the volume in cm3 of a single atom?

1190
views
Open Question
Answer the following questions without referring to Table 2.1: (a) What are the main subatomic particles that make up the atom? (b) What is the relative charge (in multiples of the electronic charge) of each proton? (b) What is the relative charge (in multiples of the electronic charge) of each neutron? (b) What is the relative charge (in multiples of the electronic charge) of each electron? (c) Which of the particles is the most massive? (d) Which is the least massive?
Textbook Question

Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (b) Every atom of a given element has the same number of protons.

585
views
Textbook Question

Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (c) The number of electrons in an atom equals the number of neutrons in the atom.

481
views
Textbook Question

Determine whether each of the following statements is true or false. If false, correct the statement to make it true: (d) The protons in the nucleus of the helium atom are held together by a force called the strong nuclear force.

763
views