NCERT Exemplar Solutions Class 7 Mathematics Solutions for Fractions and Decimals - Exercise in Chapter 2 - Fractions and Decimals

Question 6 Fractions and Decimals - Exercise

In her science class, Jyoti learned that the atomic weight of Helium is 4.0030; of Hydrogen is 1.0080; and of Oxygen is 16.0000. Find the difference between the atomic weights of Helium and Hydrogen.


Atomic weight of Hydrogen is 1.0080

Atomic weight of Helium is 4.0030

Atomic weight of Oxygen is 16.0000

Difference between atomic weights of Helium and Hydrogen = 4.0030 – 1.0080 = 2.9950

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