Which of the following elements is found in period 3?

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Question: Which of the following elements is found in period 3?

Options:

Correct Answer: Sodium

Solution:

Sodium is in period 3 of the periodic table.

Which of the following elements is found in period 3?

Which of the following elements is found in period 3?

Step 1: Understand what a 'period' is in the periodic table. A period is a horizontal row of elements.
Step 2: Identify the elements in period 3. The elements in period 3 are Sodium (Na), Magnesium (Mg), Aluminum (Al), Silicon (Si), Phosphorus (P), Sulfur (S), Chlorine (Cl), and Argon (Ar).
Step 3: Look for the element mentioned in the question. The question asks for an element in period 3.
Step 4: Confirm that Sodium (Na) is one of the elements listed in period 3.

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