Advertisements
Advertisements
प्रश्न
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
उत्तर
APPEARS IN
संबंधित प्रश्न
Define the term: Element
Name: a Non-metal Which is a Good Conductor of Electricity.
Give reason: Graphite is used to make a lead of the pencils.
Give reason: Argon is filled in electric bulbs.
Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.
Indicate whether the following statement is true or false:
Noble gases are high reactive
Select the correct answer from the choice given below.
The type of molecule- bromine
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
Reason out
Elements are called semimetals.
