Advertisements
Advertisements
प्रश्न
Ordinary chlorine gas has two isotopes \[\ce{^35_17Cl}\] and \[\ce{^37_17Cl}\] in the ratio of 3 : 1. Calculate the relative atomic mass of chlorine.
उत्तर
\[\ce{^35_17Cl : ^37_17Cl}\] = 3 : 1
∴ Total mass = (35 × 3) + (37 × 1)
= 105 + 37
= 142
∴ Relative atomic mass of chlorine = `142/4`
= 35.5
APPEARS IN
संबंधित प्रश्न
Define the atomic mass unit.
An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol.
An ion with mass number 56 contains 3 units of positive charge and 30.4% more neutrons than electrons. Assign the symbol to this ion.
Define gram atomic mass of a substance. How much is the gram atomic mass of oxygen ?
What is meant by Unified Atomic Mass?
A hydrocarbon contains 4.8g of carbon per gram of hydrogen. Calculate the gram atom of each.
Name or state the following:
Atoms of the same element differing in mass number
Define the term of mass number.
Write down the mass number of the atom having 20 neutrons and 15 protons.
What would be the reason for an element to have atoms with different mass numbers?
Select the correct answer from the answer in the bracket to complete the sentence.
An atom with electronic configuration 2, 7 and mass number 19 will have ________ neutrons.
Draw the structure of oxygen and sulphur atoms.
Mass of 1 mole of Nitrogen atom is ______
Relative atomic mass is otherwise known as ______.
Answer the following question using the data given below:
- Assertion: The Relative Atomic mass of aluminium is 27
- Reason: An atom of aluminium is 27 times heavier than 1/12th of the mass of the C – 12 atom.
Write the different types of isotopes of oxygen and their percentage abundance.
What are the postulates of Bohr’s model of an atom?
