Multiple Choice
Which element has 13 protons in its nucleus?
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Table of contents
- 1. Intro to General Chemistry3h 48m
- Classification of Matter18m
- Physical & Chemical Changes19m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- Noble Gas Compounds3m
- 24. Transition Metals and Coordination Compounds3h 16m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Paramagnetism and Diamagnetism10m
- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
- Naming Coordination Compounds22m
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- Isomerism in Coordination Complexes15m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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- Crystal Field Theory: Square Planar Complexes4m
- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
The Atom
Multiple Choice
How many neutrons are present in the most abundant isotope of boron?
A
7
B
11
C
6
D
5
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Verified step by step guidance1
Identify the atomic number (Z) of boron, which is the number of protons in the nucleus. For boron, Z = 5.
Determine the mass number (A) of the most abundant isotope of boron. The most common isotope of boron has a mass number of 11.
Recall that the number of neutrons (N) in an isotope is given by the difference between the mass number and the atomic number: \(N = A - Z\).
Substitute the values for the most abundant isotope: \(N = 11 - 5\).
Calculate the number of neutrons to find the answer.
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