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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

Text Solution

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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Knowledge Check

  • If there are 12 neutrons in an atom and its atomic number is 11. How many protons are present in it?

    A
    11
    B
    12
    C
    23
    D
    1

  • How many number of atoms are present in fcc unit cell?

    A
    4
    B
    3
    C
    2
    D
    1

  • If an isotope of hydrogen has two neutrons in its atom, its atomic number and atomic mass number will respectively be

    A
    2 and 1
    B
    3 and 1
    C
    1 and 1
    D
    1 and 3

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