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MBD-ATOMS AND MOLECULES -Example
- What is the ratio by mass of N and H in NH3
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- What is Prouÿs law of constant composition ?
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- Who gave Atomic theory ?
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- When did John Dalton gave atomic theory ?
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- What are the units used to express the atomic radius ?
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- What is the relationship between m and nm ?
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- What is the building block of all matter ?
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- Who was the first scientist which used symbols for elements ?
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- What was special about symbols of elements given by Berzelius ?
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- What were the units used for expressing atomic masses of elements init...
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- When was C^12 isotope universally accepted as standard reference for e...
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- Which unit is used now-a-days to express atomic masses ?
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- Name the smallest particle of an element or compound which can exist f...
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- What is obtained when the atoms of the same element combine ?
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- How many atoms are present in oxygen molecule.
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- Give four examples of diatomic molecules.
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- Give one example of tetra-atomic molecule.
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- Give one example of octa-atomic molecule.
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- What is produced when three atoms of oxygen combine.
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- Name isotopes of carbon
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