sodium (na) is found in period
sodium (na) is found in period
Answer
# Explanation:
## Step1: Recall the periodic table structure
The periodic table has rows called periods.
## Step2: Locate sodium (Na)
Sodium has the atomic number 11. In the periodic table, elements are arranged in order of increasing atomic number.
## Step3: Determine the period
Sodium is in period 3.
# Answer:
3