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Questions and Answers
Which of the following is the correct number of protons in the atom (\ce{_{18}^{40}Ar})?
Which of the following is the correct number of electrons in the atom (\ce{_{18}^{40}Ar})?
Which of the following is the correct number of neutrons in the atom (\ce{_{18}^{40}Ar})?
Which of the following is the correct total number of nucleons in the Lithium atom?
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Which of the following is the correct statement about the nucleus of an atom?
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Study Notes
Atomic Structure
- The atomic number of Argon (Ar) is 18, which is the number of protons in the atom.
- The atomic mass of Argon (Ar) is 40, which is the sum of protons and neutrons in the atom.
- The number of electrons in the atom of Argon (Ar) is 18, as it is a neutral atom and the number of electrons is equal to the number of protons.
- The number of neutrons in the atom of Argon (Ar) is 40 - 18 = 22.
- The total number of nucleons in an atom is the sum of protons and neutrons.
- The nucleus of an atom consists of protons and neutrons, which are collectively known as nucleons.
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Description
Test your knowledge on atomic structure with this quiz! Calculate the number of protons, electrons, and neutrons in the atom (\ce{_{18}^{40}Ar}) and discover how these numbers are related to the atomic number and mass number.
