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7 September, 16:24

How are the elements arranged in the current periodic table?

O

A. In order of increasing number of neutrons

O

B. In order of increasing number of electrons

O

C. In order of increasing atomic number

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D. In order of increasing average atomic mass

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Answers (2)
  1. 7 September, 17:28
    0
    Elements are arranged in order of increasing atomic number.

    Explanation:

    The atomic number corresponds with the number of protons the element has. ie. Mg has an atomic number of 12 and it has 12 protons in its nucleus.
  2. 7 September, 17:28
    0
    C. In order of increasing atomic number

    O
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