5 Questions
What is the atomic number of an element?
The number of protons present in the nucleus of its atoms
What is the mass number of an atom?
The sum of number of protons and neutrons present in the nucleus
What are nucleons?
Particles found in the nucleus of an atom, including protons and neutrons
What are isotopes?
$A_Z^X$ representing atoms with same number of protons but different number of neutrons
What is meant by nuclide?
$A_Z^X$ representing an atom
Study Notes
Atomic Structure
- Atomic number of an element is the number of protons present in the nucleus of an atom, which determines the identity of an element.
- Mass number of an atom is the total number of protons and neutrons present in the nucleus of an atom.
Nucleons and Nuclides
- Nucleons are the protons and neutrons present in the nucleus of an atom.
- Isotopes are atoms of the same element with the same atomic number (number of protons) but different mass numbers (different number of neutrons).
- A nuclide is a specific atom with a certain number of protons and neutrons in its nucleus, often represented by the symbol AX, where A is the mass number and X is the symbol of the element.
Test your knowledge of atomic and nuclear physics with this quiz based on the 18th chapter of a 10th-grade physics textbook. The quiz covers topics such as atoms, nucleons, atomic number, mass number, and nuclide.
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