Show:
Elements
Periodic Table
symbols
Atomic number
Atomic mass
100
Hydrogen
What is the first element on the periodic table
100
Dmitri Mendeleev
Who created the periodic table
100
Helium
What does HE stand for on the periodic table
100
2
What is the atomic number for helium
100
14.0067
What is the atomic mass for nitrogen
200
An element is a substance that is made entirely from one type of atom.
What is an element
200
Atomic number
Elements in the periodic table are arranged by
200
Aluminum
What does AL stand for on the periodic table
200
18
What is the atomic number for Argon
200
15.9994
What is the atomic mass for oxygen
300
118 elements
How many elements are there?
300
atomic radius
Which of these things are NOT listed in the periodic table?
300
Barium
What does Ba stand for on the periodic table
300
5
What is the atomic number for Boron
300
6.941
What is the atomic mass for lithium
400
Argon
What does AR stand for on the periodic table
400
true
The rows of the periodic table are called periods.
400
Carbon
What does C stand for on periodic table
400
118
What is the atomic number for Oganessonm or known as Og
400
20.1797
What is the atomic mass for neon
500
Cesium
What is the largest element on the periodic table
500
true
The columns of the periodic table are called groups.
500
Chlorine
What does Ci stand for on the periodic table
500
92
What is the atomic number for uranium
500
1.0079
What is the atomic mass for hydrogen