Mass of atom expressed in atomic mass unit is :

Atomic mass

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Molecular mass

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Atomic number

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None of the above

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Solution

The correct option is A Atomic mass
The mass of an atom expressed in amu is known as atomic mass. atomic mass unit defined as a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12.

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Similar questions

The atomic mass unit is expressed by considering $\frac{1}{12}$ the mass of an oxygen atom.

Q. If (

N, P, A s

) was Dobereiner's triads then what would be the absolute error in atomic mass of phosphorous as compared to the original mass?
Atomic mass : Nitrogen

= 14

amu, Arsenic

= 74.9

amu, Phosphorous

= 31

amu

X (atomic mass = 37), Y (atomic mass = 81), and Z are three members of Dobereiner's triads. Atomic mass of Z=?

Gram Atomic mass is just the atomic mass expressed in grams ...ie, atomic mass with gram as units. Our book says that gram atomic mass and gram atom are the same thing (similarly for gram molecule and gram molecular mass) . But later a formula is given that : Gram atom = mass in grams / Atomic mass [RAM].

There are questions also that use this formula ( similarly for gram molecule) in which we have to find the number of "gram atoms " in a given mass of substance.

So what is the real meaning of gram atom and the formula ( and is is similar for gram molecules) ?

Q. Calculate the atomic mass of

N

-atoms in unified atomic mass unit?

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Mass of atom expressed in atomic mass unit is :

The correct option is A Atomic massThe mass of an atom expressed in amu is known as atomic mass. atomic mass unit defined as a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12.

The correct option is A Atomic mass
The mass of an atom expressed in amu is known as atomic mass. atomic mass unit defined as a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12.