Multiple choice general knowledge science & technology

The periodic table is called this way because:

  1. it describes the periodic motion of celestial bodies

  2. it describes the periodic arrangement of chemical elements.

  3. it describes the signs of the zodiac in a new way.

  4. no particular reason really

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The periodic table is named 'periodic' because elements are arranged based on recurring patterns (periodicity) in their chemical and physical properties. These properties repeat at regular intervals when elements are ordered by atomic number. Dmitri Mendeleev exploited these periodic trends to organize elements systematically.