2 show the hon farmerte fortzet Assignment
Show the bond, formation of ammonia NH3
(i) How many share pair electron
i How many Lone pair of electron​

is there any options? maybe im just not seeing them but i need the options to

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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.