please give me the notes of Science chapter metal and non metal class 10th CBSE
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Metals and Non-Metals | Metals and Non-Metals Class 10 Notes
Element: Is a substance that can’t be broken into more simpler substances. Elements are classified into different categories:
Metals
Non Metals
Metalloids
Noble Gases
Metals
Metals are those elements which have 1,2 or 3 valence electrons in their valence shell.
Example : atomic no. of Na =11
Electronic confugration =2,8,1
They always loose electrons to form electropositive ions.
Na – 1electron ------Na +
Non Metals
Non metals are those elements which have 4,5,6 or 7 valence electrons in their valence shell and they always gain electrons to form electronegative ions.
Cl(17) – 1 electron --------Cl-
Electronic Configuration = 2,8,7
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Metals and Non-Metals Class 10 Notes Science Chapter 3, Explanation
Metals and Non-Metals | Metals and Non-Metals Class 10 Notes, Explanation, Question Answers
Metals and non-metals Notes of CBSE Class 10 Science Chapter with a detailed explanation of the chapter ‘l
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Class 10 Science
Chapter 3 - Metals and non metals
metals and non metals
See Video Explanation of Metals and Non-Metals
metals
metallurgy
non metals
chemical bonding
physical properties of metals and non metals
alloys
chemical properties of metals and non metals
NCERT Book solutions
Also See: CBSE Class 10 Science Syllabus 2019-2020 Session
Element: Is a substance that can’t be broken into more simpler substances. Elements are classified into different categories:
Metals
Non Metals
Metalloids
Noble Gases
Metals
Metals are those elements which have 1,2 or 3 valence electrons in their valence shell.
Example : atomic no. of Na =11
Electronic confugration =2,8,1
They always loose electrons to form electropositive ions.
Na – 1electron ------Na +
Top
Non Metals
Non metals are those elements which have 4,5,6 or 7 valence electrons in their valence shell and they always gain electrons to form electronegative ions.
Cl(17) – 1 electron --------Cl-
Electronic Configuration = 2,8,7
Top
Related - Tips to score 95% in Class 10 Science Paper
Video Explanation of Lesson Metals and Non-Metals
Physical Properties Of Metals and Non Metals
1. malleability: process of beating into thin sheets
Metals :are malleable
Non metals :non malleable because they are brittle
2. ductility: process of drawing into thin wires
Metals:ductile
Non metals: nonductile because they are brittle
3. Electrical Conductivity And Thermal Conductivity:
Metals: good conductor of heat and electricity because of free mobile electrons in it.
Non metals: poor conductor of heat and electricity.
4. lustre: shine
Metals: lustrous
Non metals: non lustrous
5. Hardness:
Metals: hard
Non metals: soft
6. physical state:
Metals: solid at room temperature
Non metal: can be solid, liquid or gaseous
7. melting and boiling point:
Metals :high m.pt and b.pt
Non metals: low m.pt and b.pt
8. Sonority: when hit, they produce sound
Metals:sonorous
Non metal:non sonorous
Answer:
Soory. ..
I am in Mh Board..
