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12 grade chemistry others

How many grams does an atom of hydrogen weigh?

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1 Year agoGrade
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ApprovedApproved Tutor Answer1 Year ago

The weight of a hydrogen atom is approximately 1.008 atomic mass units (amu). In terms of grams, this translates to about 1.67 x 10-24 grams. This tiny mass reflects the atom's fundamental role in the universe, as hydrogen is the simplest and most abundant element.

Understanding Atomic Mass

Atomic mass units are a standard way to express the mass of atoms. For hydrogen:

  • 1 amu is defined as one twelfth the mass of a carbon-12 atom.
  • Hydrogen's atomic mass is slightly more than 1 amu due to the presence of its single proton and electron.

Importance of Hydrogen

Hydrogen is crucial in various chemical reactions and is a key component of water and organic compounds. Its lightweight nature allows it to play a significant role in energy production and storage.


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is Pradeep Chemistry+Ncert sufficient for all of the theory of Jee Mains Chemistry?


Hi, I’m a self-study JEE 2027 aspirant with a large 11th backlog. Since I don’t think 6–8 hour one-shots are sufficient to cover the full theory + breadth of problem types of a JEE chapter, I’ve shifted from lecture-based preparation to book-based self-study.


I have a problem with using NCERT as my primary chemistry source. In my experience, it is concise and information-heavy, but often lacks detailed explanations, systematic organisation of concepts, and categorisation of problem types. This seems especially problematic for Physical and Organic Chemistry, where I feel that simply reading NCERT may not give enough depth or problem-solving preparation.


So I’m considering this approach:


Pradeep Chemistry → complete the chapter thoroughly from Pradeep → then read NCERT for that chapter → solve JEE Main PYQs/problems.


My main question is:


Is Pradeep + NCERT sufficient as the complete theory source for JEE Main-level Chemistry?


In other words, after thoroughly completing a chapter from Pradeep and then NCERT, can I consider the theory part of that chapter complete for JEE Main, with only PYQs/problem practice remaining?


I’m asking specifically about JEE Main level, not Advanced.


Also, if Pradeep is not sufficient, what specific gap does it leave, and what would you recommend as a better book-based alternative for self-study?

Grade 1212 grade chemistry others
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