Which element has the atomic number 11? (2022)

Practice Questions

Q1
Which element has the atomic number 11? (2022)
  1. Sodium
  2. Magnesium
  3. Potassium
  4. Calcium

Questions & Step-by-Step Solutions

Which element has the atomic number 11? (2022)
  • Step 1: Understand what atomic number means. The atomic number of an element is the number of protons in its nucleus.
  • Step 2: Look for the element that has the atomic number 11. This means we need to find the element with 11 protons.
  • Step 3: Refer to the periodic table of elements. The periodic table lists all elements along with their atomic numbers.
  • Step 4: Find the number 11 in the periodic table. Look for the element that is listed next to the number 11.
  • Step 5: Identify the element next to the number 11. The element with atomic number 11 is Sodium.
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