Multiple Choice
How many protons are present in a neutral atom of neon (Ne)?
Table of contents
- 1. Intro to General Chemistry3h 46m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
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- 2. Atoms & Elements4h 17m
- The Atom9m
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- Naming Alkanes4m
- The Alkyl Groups9m
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- 23. Chemistry of the Nonmetals2h 39m
- Main Group Elements: Bonding Types4m
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- 24. Transition Metals and Coordination Compounds3h 19m
- Atomic Radius & Density of Transition Metals11m
- Electron Configurations of Transition Metals7m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
- Coordination Numbers & Geometry9m
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- Isomerism in Coordination Complexes17m
- Orientations of D Orbitals4m
- Intro to Crystal Field Theory10m
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- 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 electrons are present in a neutral atom of copper (Cu)?
A
30
B
63
C
29
D
28
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Verified step by step guidance1
Recall that in a neutral atom, the number of electrons is equal to the number of protons.
Identify the atomic number of copper (Cu) from the periodic table, which represents the number of protons in the nucleus.
Note that the atomic number of copper is 29, meaning it has 29 protons.
Since the atom is neutral, the number of electrons must also be 29 to balance the positive charge of the protons.
Therefore, a neutral copper atom contains 29 electrons.
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