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Identify the atomic number.

Chemistry

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Answer

The "twenty element" refers to the element with atomic number 20.

Step-by-step solution

3 steps

  1. Identify the atomic number.

    The atomic number is 20.

  2. Find the element with atomic number 20 from the periodic table.

    The element with atomic number 20 is Calcium.

  3. State the symbol for Calcium.

    The symbol for Calcium is Ca.

    The twenty element is Calcium (Ca).

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