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प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
पर्याय
24 g of magnesium and 6 g of carbon
12 g of carbon and 24 g of magnesium
20 g of magnesium and 10 g of carbon
12 g of magnesium and 6 g of carbon
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उत्तर
12g of magnesium and 6g of carbon
The student will have to weigh 12 g of Magnesium and 6 g of Carbon.
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संबंधित प्रश्न
Define: Compounds
Name the element used as a standard for atomic mass scale.
Explain the significance of the symbol H.
Define atomic mass unit. What is its symbol ?
Give the names and symbols of the first twenty elements of the periodic table.
State the type of element for the following:
Chlorine
Give the symbol of the following element:
Carbonate
Write the radical of the following valency:
Sulphite
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
The first letter of a symbol is always written as a ______ letter and the second letter as a ______ letter.
