Multiple Choice
Which of the following particles are found in the nucleus of an atom?
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- 1. Intro to General Chemistry3h 58m
- Classification of Matter18m
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- Ligands10m
- Complex Ions5m
- Coordination Complexes7m
- Classification of Ligands11m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
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- Magnetic Properties of Complex Ions: Octahedral Complexes11m
2. Atoms & Elements
The Atom
Multiple Choice
How many protons are present in a neutral atom of calcium?
A
18
B
20
C
40
D
12
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Verified step by step guidance1
Recall that the number of protons in a neutral atom is equal to the atomic number of the element.
Identify the element given in the problem, which is calcium.
Look up the atomic number of calcium on the periodic table; this number represents the number of protons.
Understand that the atomic number of calcium is 20, meaning a neutral calcium atom has 20 protons.
Confirm that the number of protons equals the number of electrons in a neutral atom, but the question only asks for protons.
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