Multiple Choice
How many protons are in a neutral atom of copper (Cu)?
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4. Atoms and Elements
Subatomic Particles (Simplified)
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How many protons are in an atom of tin (Sn)?
A
50
B
82
C
24
D
118
Verified step by step guidance1
Identify the element in question, which is tin (Sn). Each element is defined by its atomic number, which represents the number of protons in its nucleus.
Recall that the atomic number is unique to each element and can be found on the periodic table. For tin (Sn), locate it on the periodic table to find its atomic number.
Understand that the atomic number directly tells you the number of protons in the atom. Therefore, the number of protons in tin is equal to its atomic number.
Write down the relationship: \(\text{Number of protons} = \text{Atomic number of Sn}\).
Use the periodic table to find the atomic number of tin and conclude that this number is the count of protons in a tin atom.
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