William Prout (1815) proposed that all other atoms are built up of hydrogen atoms, suggesting that all elements

William Prout (1815) proposed that all other atoms are built up of hydrogen atoms, suggesting that all elements should have integral atomic masses based on an atomic mass of one for hydrogen. This hypothesis appeared discredited by the discovery of atomic masses, such as 24.3 u for magnesium and 35.5 u for chlorine. In terms of modern knowledge, explain why Prout’s hypothesis is actually quite reasonable.

Solutions

Expert Solution

We now recognize that the values of 24.3 u and 35.3 u for the masses of Mg and Cl represent a weighted-average that considers the mass and abundance of each isotope. The experimental mass of each isotope is very close to the natural number and therefore very close to an integer multiple of the mass of 1H, thus supporting Prout’s hypothesis.

Junaid answered 2 months ago

Next > < Previous

Related Solutions

Show that the statement that the Sun’s atoms are made up of 92% Hydrogen is consistent...

Show that the statement that the Sun’s atoms are made up of 92% Hydrogen is consistent with its mass being 73% Hydrogen. Hint: Using the simplifying assumption, which is nearly true, that the Sun is entirely Hydrogen and Helium.

carbon, hydrogen, oxygen and nitrogen make up the bulk of the atoms in the human body....

carbon, hydrogen, oxygen and nitrogen make up the bulk of the atoms in the human body. However, there are many trace elements present as well. Pick three of these trace elements and do a little Internet research to find out where they're found and what they're used for in the body.

Hydrogen with 1s^2 would be similar to what other elements? Is this element paramagnetic?

Draw the alcohol that is oxidized to give the product shown below. Show all hydrogen atoms.

Draw the product of the oxidation of the following aldehyde. Include all hydrogen atoms in your structure.

a. What is the difference between atoms and molecules? b. List all elements that cannot have...

a. What is the difference between atoms and molecules? b. List all elements that cannot have an "expanded octet."

When two hydrogen atoms approach each other to form a chemical bond, different interactions occur between...

When two hydrogen atoms approach each other to form a chemical bond, different interactions occur between the atoms. Identify the correct statements with respect to the interactions involved in the formation of chemical bond. Check all that apply. When two atoms of H approach each other, each electron repels the other nucleus. When two atoms of H approach each other, each electron is attracted by the other nucleus. When two atoms of H are infinitely far apart, they show attractive...

1. Sketch a proposed set up for the hot bath. Make sure that all of the...

1. Sketch a proposed set up for the hot bath. Make sure that all of the listed equipment is included in the sketch (the drawing does not have to be of professional quality, of course.) 2. Calculate the theoretical yield of aspirin if 1.05 g of salicylic acid is combined with 2.0 mL of acetic anhydride. Follow your Result Sheet if you need help. 3. What is an ester? 4. Why is sulfuric acid added to the esterification reaction?

Electrical conductors and insulators all have atoms made up of protons, neutrons and elctrons. How then,...

Electrical conductors and insulators all have atoms made up of protons, neutrons and elctrons. How then, do conductors and insulators differ?

Draw the organic product (if any) expected from the following reaction: (include all hydrogen atoms) CH3CH2CH2OH + K2Cr2O7(aq) H2SO4

Draw the organic product (if any) expected from the following reaction: (include all hydrogen atoms) $$ \begin{aligned} &\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}(a q) \stackrel{\mathrm{H}_{2} \mathrm{SO}_{4}}{\longrightarrow}\\ &\text { Note: } \mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \text { is present in excess. } \end{aligned} $$

Subjects