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प्रश्न
Write the names of elements from the following symbol:
Ir
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उत्तर
Ir- Iridium
संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Give two examples of the following.
Metals which are soft
What is meant by H20 and 3H2O
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Find the atomicity of the Following molecule:
Calcium Chloride
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
The first letter of an element is always written in ______ letter.
Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
Identify all combinations that represent
- molecule of a compound
- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
