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Earn 100

Select whether the following statement is true or false:

Initially, the hydrogen atom was used as a reference to determine the relative atomic masses of other elements.

50% studentsanswered this correctly

Important Questions on Measurement of Matter

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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The nucleons in an atom consists of:
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
One nm is equal to:
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The lightest element is _____. (Nitrogen/ Hydrogen)
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The gram atomic mass of  Na1123 is
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The radius of hydrogen atom is: 
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The total number of protons and neutrons in the nucleus of an atom is called _____.
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The main subatomic particles of nucleus are
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The molar mass of C atom is _____ g/mol.
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The accepted unit of atomic mass and molecular mass is 
MEDIUM
Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The relative atomic mass of a light element up to calcium is approximately _____ its atomic number.
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The mass of _____ is equivalent to one atomic mass unit:
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
1 nm is equal to:
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
Relative Atomic Mass (RAM) is simply called as _____ mass.
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The reference standard used for defining the atomic mass unit is
MEDIUM
Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
Complete the missing link.
If the atomic mass of silver is 108 u, then its molar mass is _____ g/mol.
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The protons and neutrons are collectively called _____. (nucleus / nucleons)
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The size of the nucleus is _____ (larger/ smaller) than the size of the atom.
MEDIUM
Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
Complete the missing link.
1 u stands for _____ of mass of a carbon atom. 112th/ 114th
MEDIUM
Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
Relative atomic mass is otherwise known as _____. (Atomic weight / Relative mass)
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Science>Chemistry>Measurement of Matter>Atom: size,mass and valency
The mass of hydrogen atom is determined: