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In an atom, the mass number of an atom is equal to the number of___________.
- a)nucleons
- b)protons
- c)electrons
- d)neutrons
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
In an atom, the mass number of an atom is equal to the number of______...
Mass Number of an Atom:
The mass number of an atom is the sum of the number of protons and neutrons in the nucleus of an atom. It is denoted by the symbol A.
Formula for Mass Number:
Mass Number (A) = Number of Protons (Z) + Number of Neutrons (N)
Explanation of the Answer:
In an atom, the mass number is equal to the total number of nucleons. Nucleons are the particles found in the nucleus of an atom. They include protons and neutrons. Electrons are not included in the mass number calculation because they are much lighter than protons and neutrons and their mass is negligible in comparison.
Therefore, the correct answer is option 'A' which states that the mass number of an atom is equal to the number of nucleons.
Conclusion:
The mass number of an atom is a crucial concept in nuclear physics and chemistry. It helps in determining the stability and properties of an atom. The atomic mass of an element is the weighted average of the mass numbers of all the isotopes of that element.
The mass number of an atom is the sum of the number of protons and neutrons in the nucleus of an atom. It is denoted by the symbol A.
Formula for Mass Number:
Mass Number (A) = Number of Protons (Z) + Number of Neutrons (N)
Explanation of the Answer:
In an atom, the mass number is equal to the total number of nucleons. Nucleons are the particles found in the nucleus of an atom. They include protons and neutrons. Electrons are not included in the mass number calculation because they are much lighter than protons and neutrons and their mass is negligible in comparison.
Therefore, the correct answer is option 'A' which states that the mass number of an atom is equal to the number of nucleons.
Conclusion:
The mass number of an atom is a crucial concept in nuclear physics and chemistry. It helps in determining the stability and properties of an atom. The atomic mass of an element is the weighted average of the mass numbers of all the isotopes of that element.
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Community Answer
In an atom, the mass number of an atom is equal to the number of______...
Nucleons will be the answer
bcz ...
Mass no. = no of neutrons + no. of protons.
bcz ...
Mass no. = no of neutrons + no. of protons.
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