Multiple Choice
Given a diagram of an atom showing 6 protons, 6 neutrons, and 6 electrons, which of the following correctly completes the table for atomic number, mass number, and element symbol?
77
views
2. Atoms & Elements
The Atom
Multiple Choice
Which of the following best represents the approximate mass of a proton?
A
1.67 \(\times\) 10^{-24} \(\text{ kg}\)
B
9.11 \(\times\) 10^{-31} \(\text{ kg}\)
C
1.00 \(\text{ kg}\)
D
1.67 \(\times\) 10^{-27} \(\text{ kg}\)
Verified step by step guidance1
Recall that the mass of a proton is a fundamental constant in chemistry and physics, often used in atomic and nuclear calculations.
Understand that the mass of a proton is approximately \(1.67 \times 10^{-27}\) kilograms, which is much larger than the mass of an electron but still extremely small compared to everyday objects.
Compare the given options to this known value: \(1.67 \times 10^{-24}\) kg is three orders of magnitude larger, \(9.11 \times 10^{-31}\) kg corresponds to the mass of an electron, and \$1.00$ kg is far too large for a subatomic particle.
Recognize that the correct approximate mass of a proton is closest to \(1.67 \times 10^{-27}\) kg, which matches the accepted scientific value.
Use this knowledge to select the correct answer, understanding the scale and significance of the proton's mass in atomic structure.
Related Videos
Related Practice
