Number of Elements
What number element is oxygen?
8
How many radioactive elements are there?
38
How many Noble Gases are there?
6
What element do we need to stay alive?
Oxygen
What is the lightest element?
Hydrogen
What number element is calcium?
20
What is the least radioactive element on the periodic table of elements?
Bismuth
What number is helium?
2
What two elements next to each other spell the word "No"?
Nitrogen, Oxygen
What element can kill us if we don't have enough of it in our body?
Iron
What number is Iron?
26
What is the atomic number of the least radioactive element?
83
What number is Radon?
86
What element is mostly in our body?
Calcium
What element is our hair and nails made of?
Calcium
What number element is Meitnerium?
109
What is the symbol for Bismuth?
BI
What element is used in early cancer treatment?
Radon
What four elements are fundamental for life?
Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N)
What number is Lawrencium?
103
What is the most radioactive element?
Oganesson
What is the Atomic weight of Radon?
222
What is the Atomic weight of Oxygen?
15.999
What is the heaviest element?
Oganesson