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Which element has an atomic number that is exactly double that of silicon?
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- 1. Intro to General Chemistry4h 5m
- Classification of Matter18m
- Physical & Chemical Changes19m
- Chemical Properties7m
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- The Atom10m
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- 23. Chemistry of the Nonmetals2h 39m
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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
Scelta multipla
How many protons are present in an atom of indium (In)?
A
48
B
50
C
47
D
49
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Guida verificata passo dopo passo1
Recall that the number of protons in an atom is equal to its atomic number, which is unique for each element.
Identify the element given in the problem, which is indium (In).
Look up the atomic number of indium on the periodic table. The atomic number corresponds to the number of protons.
Note that the atomic number of indium is 49, meaning an indium atom contains 49 protons.
Therefore, the correct answer is the number that matches the atomic number of indium, which is 49.
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