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Questions and Answers
What defines the isotope of an element?
What defines the isotope of an element?
Why is it not possible to see atoms with conventional microscopes?
Why is it not possible to see atoms with conventional microscopes?
What distinguishes chemical elements from each other?
What distinguishes chemical elements from each other?
What percentage of an atom's mass is in the nucleus?
What percentage of an atom's mass is in the nucleus?
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What makes accurately predicting the behavior of atoms using classical physics impossible?
What makes accurately predicting the behavior of atoms using classical physics impossible?
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Study Notes
Atomic Structure and Properties
- The isotope of an element is defined by the number of neutrons present in the nucleus of an atom.
- Atoms cannot be seen with conventional microscopes because they are extremely small, with sizes measured in picometers (10^-12 meters).
- Chemical elements are distinguished from each other by the number of protons present in the nucleus of an atom, known as the atomic number.
- The nucleus of an atom contains approximately 99.9% of the atom's total mass.
- Accurately predicting the behavior of atoms using classical physics is impossible because atoms exhibit wave-like behavior and possess quantized energy levels, which are principles of quantum mechanics.
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Description
Test your knowledge of atomic structure and the periodic table with this quiz! Challenge yourself to identify elements based on their number of protons and understand the fundamental building blocks of matter.
