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Which one of the following statements is not correct?
- a)Atoms of different elements may have the same mass numbers.
- b)Atoms of an element may have different mass numbers.
- c)All the atoms of an element have the same number of protons.
- d)All the atoms of an element will always have the same number of neutrons.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which one of the following statements is not correct?a)Atoms of differ...
An atom is a fundamental piece of matter or basic building block of any matter
- The atomic number is the number of protons found in the nucleus of an atom.
- The atomic mass number is the total number of protons and neutrons in a nucleus.
- Isotope – When an element has the same number of protons but different numbers of neutrons. It means the same element can have a different mass number.
- Isotopes of different elements can have the same mass number, e.g., carbon-14 (6 protons and 8 neutrons) and nitrogen-14 (7 protons and 7 neutrons).
- Atoms of a particular element must have the same number of protons. It can not differ.
- All the atoms of an element will not always have the same number of neutrons. It can have a different number of neutrons.
Most Upvoted Answer
Which one of the following statements is not correct?a)Atoms of differ...
Incorrect Statement
Statement: All the atoms of an element will always have the same number of neutrons.
Explanation
Atoms are the smallest unit of matter that retains the chemical properties of an element. An atom consists of a nucleus containing positively charged protons and uncharged neutrons, surrounded by negatively charged electrons.
Mass Number and Isotopes
The mass number of an atom is the sum of the number of protons and neutrons in its nucleus. Atoms of the same element have the same number of protons, which is called the atomic number. However, atoms of the same element may have different mass numbers. This is because of the existence of isotopes, which are atoms of the same element with different numbers of neutrons.
Examples of Isotopes
For example, carbon has three isotopes: carbon-12, carbon-13, and carbon-14. Carbon-12 has 6 protons and 6 neutrons, carbon-13 has 6 protons and 7 neutrons, and carbon-14 has 6 protons and 8 neutrons.
Conclusion
Therefore, the correct statement is that all the atoms of an element have the same number of protons (atomic number), but they may have different numbers of neutrons (mass number) due to the existence of isotopes.
Statement: All the atoms of an element will always have the same number of neutrons.
Explanation
Atoms are the smallest unit of matter that retains the chemical properties of an element. An atom consists of a nucleus containing positively charged protons and uncharged neutrons, surrounded by negatively charged electrons.
Mass Number and Isotopes
The mass number of an atom is the sum of the number of protons and neutrons in its nucleus. Atoms of the same element have the same number of protons, which is called the atomic number. However, atoms of the same element may have different mass numbers. This is because of the existence of isotopes, which are atoms of the same element with different numbers of neutrons.
Examples of Isotopes
For example, carbon has three isotopes: carbon-12, carbon-13, and carbon-14. Carbon-12 has 6 protons and 6 neutrons, carbon-13 has 6 protons and 7 neutrons, and carbon-14 has 6 protons and 8 neutrons.
Conclusion
Therefore, the correct statement is that all the atoms of an element have the same number of protons (atomic number), but they may have different numbers of neutrons (mass number) due to the existence of isotopes.
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Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer?
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Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer?.
Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Which one of the following statements is not correct?a)Atoms of different elements may have the same mass numbers.b)Atoms of an element may have different mass numbers.c)All the atoms of an element have the same number of protons.d)All the atoms of an element will always have the same number of neutrons.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence.
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