Number of Electron, Proton & Neutron Mini question bank (Structure of Atom) Structure of Atom Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

The maximum number of neutrons are present in the nuclei of:

$1 .$ $O_{8}^{16}$
$2 .$ ${Mg}_{12}^{24}$
$3 .$ ${Fe}_{26}^{56}$
$4 .$ ${Sr}_{38}^{88}$

Subtopic: Number of Electron, Proton & Neutron |

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The number of protons, neutrons and electrons in $ _{71}^{175}Lu$ respectively, are:

1. 104, 71 and 71

2. 71, 71 and 104

3. 175, 104 and 71

4. 71, 104 and 71

Subtopic: Introduction of Atomic Structure | Number of Electron, Proton & Neutron |

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The electron of a Br atom that experiences the lowest effective nuclear charge is:

1. 2p and 3p

2. 4p

3. 2p

4. 3p

Subtopic: Number of Electron, Proton & Neutron |

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Which among the following are isoelectronic species?

1. ${Na}^{+}, K^{+}, {Ca}^{2 +}, {Mg}^{2 +}$

2. ${Ca}^{2 +}, {Mg}^{2 +}, S^{2 -}, K^{+}$

3. ${Ca}^{2 +}, Ar, S^{2 -}, K^{+}$

4. None of the above

Subtopic: Number of Electron, Proton & Neutron |

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Assertion (A):	All isotopes of a given element show the same type of chemical behaviour.
Reason (R):	The chemical properties of an atom are controlled by the number of electrons in the atom.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	(A) is False but (R) is True.

Subtopic: Number of Electron, Proton & Neutron |

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