101k views
17 votes
Elements in the periodic table are arranged in order of increasing atomic mass?

True or false

User Alcalde
by
3.5k points

1 Answer

2 votes
It’s true because the chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in an atom's nucleus, which generally coincides with increasing atomic mass.
User Joachim Breitner
by
3.7k points