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7th Standard
TN 7th Tamil рокро░рпБро╡роорпН -1 роЗропро▓рпН 1 - роЕроорпБродродрпНродрооро┐ро┤рпН - роТройрпНро▒ро▓рпНро▓ роЗро░рогрпНроЯро▓рпНро▓ Important Questions And Answers Study Material - QB365 Set A
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TN 7th Tamil рокро░рпБро╡роорпН -1 роЗропро▓рпН 1 - роЕроорпБродродрпНродрооро┐ро┤рпН - роОроЩрпНроХро│рпН родрооро┐ро┤рпН Important Questions And Answers Study Material - QB365 Set A
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TN 7th English T1 - Poem - Your Space Important Questions And Answers Study Material - QB365 Set A
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TN 7th English T1 - Prose - A Prayer to the Teacher Important Questions And Answers Study Material - QB365 Set A
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Published on: 14/12/2020
7th Standard Science T1 - Atomic Structure English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021
Download Tamil Nadu 7th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Atomic number is the number of __________ is an atom.
electron
proton
neutron
none
2.
The combining property of atom is called ____________
atomic number
mass number
valency
molecule
3.
Neutron was discovered by _____________
Dalton
J.J. Thomson
Chadwick
Rutherford
4.
Proton was discovered by _______________
Rutherford
Goldstein
Chadwick
J.J. Thomson
5.
J.J Thomson's atom model is also called as _____________
Plum pudding model
gold foil
alpha particle
none
6.
One metre is equal to ___________ nm.
109
108
105
1010
7.
____________ is the smallest unit used to measure small lengths
Metre
Nanometre
Millimetre
Centimetre
8.
The average diameter of an atom is ____________
10-8 m
1 m
1 Ao
10-5 m
9.
The atomic number of an atom is the ______.
Number of neutrons
Number of protons
Total number of protons and neutrons
Number of atoms
10.
The sub-atomic particle which revolves around the nucleus is _______.
Atom
Neutron
Electron
Proton
1.
(b)
proton
2.
(a)
atomic number
3.
(c)
Chadwick
4.
(a)
Rutherford
5.
(a)
Plum pudding model
6.
(a)
109
7.
(b)
Nanometre
8.
(c)
1 Ao
9.
(b)
Number of protons
10.
(c)
Electron
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Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
