A molecule is in general a group of two or more atoms that are bonded together by attractive forces.A
molecule can be defined as the smallest particle of an element or a compound that is capable of
independent existence and shows all properties of that substance.
Q1.Differentiate between molecule of an element & molecule of compound.
Q2.Give example of both.(one each)
Q3.Why atoms combine to form molecule?
Multiple choice questions
Q4.Correct symbol of Magnesium is: mg,Mn ,Ma ,Mg
Q5. Technique used for purification of copper sulphate is :
Evaporation, hydration , sublimation , crystallization
Q6.Match the column( ½×4= 2 )
Column I Column II
a)Sulphur. Monoatomic
b) Sodium. Valency of 2
c) He polyatomic
c) Calcium. Metal
Q7.Give two examples of elements symboliz by their Latin name.
Answers
Amolecule is in general a group of two or more atoms that are bonded together by attractive forces.A
molecule can be defined as the smallest particle of an element or a compound that is capable of
independent existence and shows all properties of that substance.
Q1.Differentiate between molecule of an element & molecule of compound.
Q2.Give example of both.(one each)
Q3.Why atoms combine to form molecule?
Multiple choice questions
Q4.Correct symbol of Magnesium is: mg,Mn ,Ma ,Mg
Q5. Technique used for purification of copper sulphate is :
Evaporation, hydration , sublimation , crystallization
Q6.Match the column( ½×4= 2 )
Column I Column II
a)Sulphur. Monoatomic
b) Sodium. Valency of 2
c) He polyatomic
c) Calcium. Metal
Q7.Give two examples of elements symboliz by their Latin name.
yes
Answer:
Q.3
ANSWER
Atoms form chemical bonds with other atoms when there's an electrostatic attraction between them. This attraction results from the properties and characteristics of the atoms outermost electrons, which are known as valence electrons.