12 Questions
What are some examples of elements?
Sodium, copper, silver, hydrogen, oxygen, etc.
How are atoms of different elements different in nature?
Atoms of different elements are different in nature.
What do some elements like sodium or copper contain as their constituent particles?
Atoms
How are molecules formed in elements like hydrogen, nitrogen, and oxygen?
Molecules are formed by two atoms combining.
How are compounds formed?
Compounds are formed when two or more atoms of different elements combine in a definite ratio.
Can the constituents of a compound be separated by physical methods?
No, they can only be separated by chemical methods.
What are the two categories in which properties of matter can be classified?
Physical properties and chemical properties
Give an example of a physical property.
Color
What type of change is required to observe chemical properties?
Chemical change
What are the constituent elements of a water molecule?
Hydrogen and oxygen
What is the unique property of hydrogen, oxygen, and water?
Hydrogen burns with a pop sound, oxygen is a supporter of combustion, and water acts as a fire extinguisher.
Why do atoms of different elements combine in a definite ratio to form compounds?
Atoms of different elements combine in a definite ratio to form compounds because this ratio is characteristic of a particular compound.
Learn about elements such as sodium, copper, silver, hydrogen, and oxygen, and how their atoms differ from molecules. Explore the nature of atoms in different elements and understand the distinction between atoms and molecules.
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