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How many protons are present in a neutral atom of fluorine?
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- 1. Intro to General Chemistry4h 5m
- Classification of Matter18m
- Physical & Chemical Changes19m
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- The Atom10m
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- 24. Transition Metals and Coordination Compounds3h 19m
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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
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What is the mass number of an atom that contains 5 protons and 7 neutrons?
A
7
B
35
C
5
D
12
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Guida verificata passo dopo passo1
Identify the number of protons in the atom, which is given as 5. The number of protons defines the atomic number.
Identify the number of neutrons in the atom, which is given as 7.
Recall that the mass number of an atom is the sum of the number of protons and neutrons: \(\text{Mass Number} = \text{Number of Protons} + \text{Number of Neutrons}\).
Substitute the given values into the formula: \(\text{Mass Number} = 5 + 7\).
Add the values to find the mass number, which represents the total number of nucleons in the atom.
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