Period
This knowledge is used in careers such as:
Teacher (Teaches Students) ~$55,000 - $95,000 - Number of jobs: 4,700,000 (324,500 Openings Per Year) +2% Growth
Civil Engineer (Designs Infrastructure) ~$65,000 - $110,000 - Number of jobs: 370,000 (23,600 Openings Per Year) +5% Growth
Mechanical Engineer (Designs Machines) ~$65,000 - $115,000 - Number of jobs: 290,000 (18,100 Openings Per Year) +9% Growth
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Example:
Imagine trying to organize a bookshelf where each book is a different genre but organized by the height of the book rather than the content. Just like how you arrange these books from left to right by height, a period on the periodic table arranges elements in a horizontal row, ordered by increasing atomic number. Each element in a period is like a book on your shelf, differing in properties but aligned by a systematic increase in atomic structure, much like your books are organized by their physical size rather than their story content.
Practice Version
Period: a unit of geologic time that lasts tens of millions of years, it is longer than an epoch but shorter than an era