The correct answers to the following questions are :
(1) Vertical columns in the periodic table indicate D.groups and families
(2) families of elements includes A.metals and noble gases
(3) <span>the atomic mass of many elements not a whole number because </span>B.An element may have isotopes with different numbers of neutrons.
Answer:
Every solid, liquid, gas, and plasma of atoms is composed of neutral or ionized atoms. While the chemical properties of the atom are determined by the number of protons.
The answer to this is your hair. I just looked it up and thats what most sites are saying
Answer:
They are Horatio’s primary group.
Explanation:
