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The atomic number of an element having mass number 23 and number of neutron 12 is ________ .
- a)23
- b)11
- c)12
- d)35
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The atomic number of an element having mass number 23 and number of ne...
To determine the atomic number of an element, we can use the information given about its mass number and the number of neutrons.
Given Data:
Mass number = 23
Number of neutrons = 12
We know that the mass number of an element is the sum of the number of protons and neutrons in its nucleus. Therefore, we can write the equation:
Mass number = Number of protons + Number of neutrons
To find the number of protons (which is the atomic number), we rearrange the equation as follows:
Number of protons = Mass number - Number of neutrons
Now, let's substitute the given values into the equation:
Number of protons = 23 - 12
Number of protons = 11
Hence, the atomic number of the element is 11.
Summary:
- Mass number = Number of protons + Number of neutrons
- Number of protons = Mass number - Number of neutrons
- Given mass number = 23 and number of neutrons = 12
- Substituting these values into the equation, we find the number of protons = 11
- Therefore, the atomic number of the element is 11.
Given Data:
Mass number = 23
Number of neutrons = 12
We know that the mass number of an element is the sum of the number of protons and neutrons in its nucleus. Therefore, we can write the equation:
Mass number = Number of protons + Number of neutrons
To find the number of protons (which is the atomic number), we rearrange the equation as follows:
Number of protons = Mass number - Number of neutrons
Now, let's substitute the given values into the equation:
Number of protons = 23 - 12
Number of protons = 11
Hence, the atomic number of the element is 11.
Summary:
- Mass number = Number of protons + Number of neutrons
- Number of protons = Mass number - Number of neutrons
- Given mass number = 23 and number of neutrons = 12
- Substituting these values into the equation, we find the number of protons = 11
- Therefore, the atomic number of the element is 11.
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Community Answer
The atomic number of an element having mass number 23 and number of ne...
A neutral atom will have the same number of electrons is does protons. Since it has an atomic number of 11 it must have 11 protons. Since it has an atomic mass of 23 it must have 12 neutrons.
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The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer?.
The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The atomic number of an element having mass number 23 and number of neutron 12 is ________ .a)23b)11c)12d)35Correct answer is option 'B'. Can you explain this answer?.
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