You are asked to make 500 mL of a 0.250 M sodium chloride (NaCl) solution. a. How many moles of NaCl would you need?

b. How many grams of NaCl would you need? (gfm = 58 g/mol)

explanation:

detials on each model with digrams

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

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.