8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 01/11/2019
Term 2 Atomic Structure
Download Tamil Nadu 8th 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.
In all atoms of an element
the atomic and the mass number are same.
the mass number is same and the atomic number is different
the atomic number is same and the mass number is different
both atomic and mass numbers may vary.
2.
Which of the following statements made by Dalton has not undergone any change?
Atoms cannot be broken.
Atoms combine in small, whole numbers to form compounds.
Elements are made up of atoms.
All atoms of an elements are alike
3.
In water, hydrogen and oxygen are combined in the ratio of _______by mass.
1:8
8:1
2:3
1:3
4.
Cathode rays are made up of
neutral particles
positively charged particles
negatively charged particles
None of the above
5.
The same proportion of carbon and oxygen in the carbon dioxide obtained from different sources proves the law of __________
reciprocal proportion
definite proportion
multiple proportion
conservation of mass
6.
Proton is deflected towards the _________ charged plate (positively, negatively).
7.
_______ is a negatively charged particle (Electron/Proton).
8.
A negatively charged ion is called _________, while positively charged ion is called __________
9.
An atom is made up of _________, _________ and _________.
10.
An element is composed of _________ atoms.
11.
_______ is the smallest particle of an element.
12.
Neutrons
13.
Anode rays
14.
Cathode rays
15.
Law of constant proportion
16.
Law of conservation of mass
1.
(c)
the atomic number is same and the mass number is different
2.
(d)
All atoms of an elements are alike
3.
(a)
1:8
4.
(c)
negatively charged particles
5.
(b)
definite proportion
6.
( )
negatively
7.
( )
Electron
8.
( )
anion, cation
9.
( )
proton, electron and neutron
10.
( )
similar
11.
( )
Atom
12.
James Chadwick
13.
Goldstein
14.
Sir William Crookes
15.
Joseph Proust
16.
Lavoisier
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
