Question

The first 18 elements in the periodic table have which of the following important properties? a. They have the largest atomic numbers c. Most occur as liquids at room temperature b. They do not typically combine with other elements to form compounds d. These elements make up most of the matter of the known universe Please select the best answer from the choices provided A B C D

Answer 1

d. These elements make up most of the matter of the known universe

Answer 2

Its actually a and possibly d but more likely a if they are the first 18 elements