#1: what was the key characteristic by which dmitri mendeleev arranged his periodic table?

a. increasing atomic number

b. electron configuration

c. decreasing atomic number

d. increasing atomic mass

**my d. increasing atomic mass

is that right?

Why is the structure of molecule important to its function?

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

What is the molecular weight of copper