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If there are 12 neutrons in an atom and ...

If there are 12 neutrons in an atom and its atomic number is 11, then how many electrons are present in it?

A

23

B

12

C

10

D

11

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AI Generated Solution

The correct Answer is:
To determine how many electrons are present in an atom with 12 neutrons and an atomic number of 11, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Atomic Number**: The atomic number of an element is defined as the number of protons in the nucleus of an atom. In this case, the atomic number is given as 11. 2. **Identify Number of Protons**: Since the atomic number is 11, this means that the atom has 11 protons. 3. **Determine if the Atom is Neutral**: The problem does not specify that the atom is charged, so we assume it is a neutral atom. 4. **Relate Protons to Electrons**: In a neutral atom, the number of protons is equal to the number of electrons. Therefore, if there are 11 protons, there must also be 11 electrons. 5. **Conclusion**: Thus, the number of electrons in the atom is 11. ### Final Answer: The atom has **11 electrons**. ---

To determine how many electrons are present in an atom with 12 neutrons and an atomic number of 11, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Atomic Number**: The atomic number of an element is defined as the number of protons in the nucleus of an atom. In this case, the atomic number is given as 11. 2. **Identify Number of Protons**: Since the atomic number is 11, this means that the atom has 11 protons. ...
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MTG IIT JEE FOUNDATION-ATOMS, MOLECULES AND ATOMIC STRUCTURE-EXERCISE (Multiple Choice Questions)
  1. The ion of an element has 3 positive charges. Mass number of the atom ...

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  2. The isoelectronic species are 1. Na^(+)" " 2. Al^(3+) 3. Mg^(2+...

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  3. Which one of the following is a correct electronic configuration of so...

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  4. Electron was discovered by

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  5. Which of the following elements does not form isotopes?

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  6. Pick out the isobar pair.

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  7. Common hydrogen is also called

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  8. Deuterium and tritium are the isotopes of

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  9. The atomic number of an element X is 19. The number of electrons in it...

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  10. Rutherfords experiments , which established the nuclear model of atom ...

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  11. If there are 12 neutrons in an atom and its atomic number is 11, then ...

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  12. Which of the following species does not have electrons equal to 18?

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  13. An atom of an element (X) has its K, L and M shells filled with some e...

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  14. X and Y are the two atomic species : Select the correct statement...

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  15. Number of which among the following is same in Al^(3+) and F^(-) ?

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  16. The number of protons, neutrons and electrons in four elements 1, 2, 3...

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  17. An ion having a mass number 52 has 3 units of positive charge. The num...

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  18. Which of the following statements are correct about alpha (alpha) part...

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  19. Adding an alpha particle to the nucleus of sodium atom produces which ...

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  20. The formula of phosphate of X is XPO(4). The formula of it's sulphate...

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