What Elements Are In A Period Of The Periodic Table?
Each period in the periodic table represents a row, and elements in the same period have the same number of electron shells. To give you an example, Period 2 includes lithium (Li), beryllium (Be), boron (B), carbon (C), nitrogen (N), oxygen (O), fluorine (F), and neon (Ne). Enjoy your chemistry quest!
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Quick take: Elements in the same period share the same number of electron shells but vary in other properties. Check out a periodic table for the full list!
In a nutshell, a period is a row on the periodic table. The elements in each period have varying numbers of protons but the same number of electron shells. Period 3, for instance, includes sodium (Na), magnesium (Mg), aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), chlorine (Cl), and argon (Ar).
From my personal experience, the periods run horizontally across the periodic table. If you're looking at Period 4, you'd find elements like potassium (K), calcium (Ca), and so on up to krypton (Kr). Got a periodic table handy? Dive in!
A period is essentially each horizontal row in the periodic table. In Period 1, for example, you'll find hydrogen (H) and helium (He). Super simple!
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