2Na+Cl2→2NaCl
How many grams of NaCl will be produced from 18.0 g of Na and 23.0g of Cl2?

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

c. orbital shape i hope this is correct

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.