Advertisements
Advertisements
प्रश्न
One of the following elements has an atomicity of ‘one’. This element is :
विकल्प
helium
hydrogen
sulphur
ozone
Advertisements
उत्तर
Helium
The atomicity of Helium (He) is 1.
APPEARS IN
संबंधित प्रश्न
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
The percentage composition of a gas is Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
How many atoms are there in 0.25 mole of hydrogen ?
Fill in the blank
Avogadro's number is equal to ______
Correct the following statement :
Equal masses of all gases under identical conditions contain the same number of molecules.
Calculate the number of gram atoms in 4.6 grams of sodium (Na = 23)
What is the value of molar volume of a gas at S.T.P?
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
