Question detail
What particles are found in the nucleus of an atom, and how do they contribute to the mass of the atom?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
What particles are found in the nucleus of an atom, and how do they contribute to the mass of the atom?
Answer
The nucleus of an atom contains protons and neutrons. Protons have a relative mass of 1, and neutrons also have a relative mass of 1, contributing significantly to the overall mass of the atom, while electrons, which are found outside the nucleus, have a negligible mass.
Explanation
This answer is strong as it identifies the key particles in the nucleus and their contributions to atomic mass. The question tests the student's recall of the components of an atom and their relative masses.
Common mistake
Mass Concentration Misunderstanding
Students often think that the mass of an atom is evenly distributed throughout the atom rather than concentrated in the nucleus.
Emphasize that almost all the mass of an atom is located in the nucleus, which contains protons and neutrons, while electrons contribute very little to the overall mass.
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