Question

Question 1.1.

What was the key characteristic by which Dmitri Mendeleev arranged his periodic table?
(Points : 3)
increasing atomic number

increasing atomic mass

date of discovery

chemical and physical properties



Question 2.2. What is the primary characteristic by which the modern periodic table is arranged?
(Points : 3)
increasing atomic mass

date of discovery

increasing atomic number

chemical and physical p

Answer 1

i think 1.1 is atomic mass
and 2.2 is chemical and physical p