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Question
Fill in the blank
The most abundant element in the earth’s crust is _______.
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Solution
The most abundant element in the earth’s crust is oxygen.
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RELATED QUESTIONS
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
Name: a Metal Which is brittle
Name: a Liquid Metal
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Differentiate between the terms –
elements, compounds & mixtures.
Select the correct answer from the choice given below.
A group of atoms of elements
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
Select the correct answer from the choice given below to complete the sentence :
Compounds are ____________ in nature.
Reason out
Elements are called semimetals.
