Will mark empirical formula for a compound is the radio of the atoms or moles of the elements in a compound

Empirical formula is the lowest whole number ratio of the atoms or moles of the elements in a compound.

Explanation:

Empirical formula:

It is the simplest formula gives lowest whole number ratio of the atoms or moles of the elements in a compound.

For example:

The empirical formula of glucose ( C₆H₁₂O₆) is CH₂O.

The empirical formula of benzene (C₆H₆)  is CH.

Consider  the following example:

The mass of sodium in a compound is 29 g, sulfur is 40.5 g and oxygen is 30.5 g. The empirical formula will be:

Solution:

Number of gram atoms of Na = 29.0/23 =1.261

Number of gram atoms of S = 40.5 / 32 = 1.266

Number of gram atoms of O = 30.5 / 16 = 1.906

Atomic ratio:

Na               :            S                  :    O

1.261/1.261 :       1.266/1.261     :   1.906/1.261

     1          :            1                    :         1.5

Na : S : O = 2  ( 1: 1 : 1.5)

Na : S : O = 2 : 2 : 3

Empirical formula is  Na₂S₂O₃.

it's c. elements are placed in rows based on how may valencies electrons have.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates