Does fat and soap have the same density

No

Explanation:

The soap sank but the fat floated. The density of fat is about .88 g/ml and the density of soap is about 1.18 g/ml. Fat and soap are not the same substances one reason is they have different properties.Malleability, hardness, solubility, melting point, color, and density are all properties.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

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since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

6.4 cm (max) - 25 cm (min)