Question

current attempt in progress
how many of each type of subatomic particle (protons and electrons) is in:
(a) an atom of tin?
protons
electrons
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Explanation:

Step1: Recall atomic number concept

The atomic number of an element gives the number of protons. For tin (Sn), the atomic number is 50. So, the number of protons \(= 50\).

Step2: Use neutral atom property

In a neutral atom, the number of electrons is equal to the number of protons. Since it's an atom (neutral), number of electrons \(= 50\).

Answer:

protons: 50
electrons: 50