7th Standard Syllabus & Materials
7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - ஒன்றல்ல இரண்டல்ல Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - எங்கள் தமிழ் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - Your Space Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - A Prayer to the Teacher Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - The Listeners Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - The Wind on Haunted Hill Important Questions And Answers Study Material - QB365 Set A
Published on: 16/06/2021
QB365 provides detailed and simple solution for every Book back Questions in class 7 Science Subject. It
will helps to get more idea about question pattern in every book back questions with solution.
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.
Why neutrons called neutral particles?
2.
What is the characteristics of proton?
3.
What is atomic number?
4.
Name the sub-atomic particles.
5.
Define - Atom.
1.
The total negative charge of all the electrons outside the nucleus is equal to the total positive charge of all the protons inside the nucleus. This makes the atoms electrically neutral. That is, nuclear charge is the total charge of the protons only. Therefore, neutrons are called as neutral particles.
2.
(i) One of the nucleon located in the nucleus.
(ii) Positively charged particle (+1).
(iii) Mass of a proton is 1.6726 \(\times\) 10-27 kg.
3.
The number of electrons or protons is an atom is called the atomic number (Z) of an atom.
4.
Protons, neutrons and electrons.
5.
An atom is the smallest particle of a chemical element that retains its chemical properties.
7th Standard Syllabus & Materials
7th Standard
TN 7th English T1 - Supplementary - On Monday Morning Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - Eidgah Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Social Science T1 - ECO - Production Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Social Science T1 - GEO - Interior of the Earth Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
