Advertisements
Advertisements
Question
State which element exists in the highest percentage in earth’s crust.
Advertisements
Solution
Oxygen (O) – 46.1%
APPEARS IN
RELATED QUESTIONS
An element which can exhibit valencies of 2, 4 and 6 can be :
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Give the symbol of the following element:
Hydroxide
Write the radical of the following valency:
Sulphur [Sulphide]
Give the formula of the following gas:
Nitric oxide
Give the formula of the following gas:
Sulphur dioxide
Select the correct answer from the choice in the bracket.
The formula of caustic soda.
What does the symbol '⇌' present in a chemical equation, mean?
Which of the following would weigh the highest?
