Ribose is an important sugar that is found in dna and rna. ribose has a molar mass of 150g/mol, and a percent composition of 40.0%c,6.67%h, and 53.5%o. what is the molecular formula for ribose

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.  

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