An ion is… a.) Another name for an element
b.) An element with a charge
c.) An element without a charge
d.) Two of the same elements put together

NEED IN 25 MINS!!!

B) An element with a charge

Explanation:

Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.