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PT Elements 1-20 A#

Elements 1-20 on the Periodic Table's Atomic Numbers

What is Hydrogen's Atomic Number 1 H
What is Helium's Atomic Number? 2
What is Lithium's Atomic Number? 3
What is Beryllium's Atomic Number? 4
What is Boron's Atomic Number? 5
What is Carbon's Atomic Number? 6
What is Nitrogen's Atomic Number? 7
What is Oxygen's Atomic Number? 8
What is Fluorine's Atomic Number? 9
What is Neon's Atomic Number? 10
What is Sodium's Atomic Number? 11
What is Magnesium's Atomic Number? 12
What is Aluminum's Atomic Number? 13
What is Silicon's Atomic Number? 14
What is Phosphorus' Atomic Number? 15
What is Sulfur's Atomic Number? 16
What is Chlorine's Atomic Number? 17
What is Argon's Atomic Number? 18
What is Potassium's Atomic Number? 19
What is Calcium's Atomic Number? 20
Created by: harrylover10