Easy
My element symbol is O
What is oxygen?
My atomic number is 56
What is barium?
I have an atomic mass of ~16
What is oxygen?
My atomic number is 1
What is hydrogen?
My symbol is Xe
What is xeon
I have 6 protons in my nucleus
What is carbon?
My element name is sodium. Figure out my symbol
What is Na?
Horizontal rows on the periodic table
what is a period?
We are the elements in the first period of the periodic table
What are hydrogen and helium?