write the pressure of the gas in the manometer in mmHg if the Atmosphere pressure is 760 mmHg and the difference is 40 mmHg

the correct answer is:

a. formation of precipitation

you need to have a picture of the atom that way we can answer it

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.