Tiwari Academy Discussion

Asked: October 28, 2020In: Class 9

Name the three sub-atomic particles of an atom.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-49 Questions No-1

Divya Srivastava

Asked: October 28, 2020In: Class 9

Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-49 Questions No-2

Divya Srivastava

Asked: October 28, 2020In: Class 9

Write the distribution of electrons in carbon and sodium atoms.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-50 Questions No-1

Divya Srivastava

Asked: October 28, 2020In: Class 9

If K and L shells of an atom are full, then what would be the total number of electrons in the atom?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-50 Questions No-2

Divya Srivastava

Asked: October 28, 2020In: Class 9

How will you find the valency of chlorine, Sulphur and magnesium?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-52 Questions No-1

Manvik Solanki

Asked: October 28, 2020In: Class 9

If number of electrons in an atom is 8 and number of protons is also 8, then (i) what is the atomic number of the atom? and (ii) what is the charge on the atom?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-52 Questions No-1

Damini Lokhande

Asked: October 28, 2020In: Class 9

A neutron is formed by an electron and a proton combining together. Therefore, it is neutral. Is it true or false?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-55 Questions No-14 Part-2

Damini Lokhande

Asked: October 28, 2020In: Class 9

The mass of an electron is about 1/2000 times that of proton. it is neutral. Is it true or false?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-55 Questions No- 14 Part-3

Damini Lokhande

Asked: October 28, 2020In: Class 9

An isotope of iodine is used for making tincture iodine, which is used as a medicine. it is neutral. Is it true or false?

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-55 Questions No- 14 Part-4

Poll

Damini Lokhande

Asked: October 28, 2020In: Class 9

Rutherford’s alpha-particle scattering experiment was responsible for the discovery of:

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-55 Questions No- 15

Name the three sub-atomic particles of an atom.

Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have?

Write the distribution of electrons in carbon and sodium atoms.

If K and L shells of an atom are full, then what would be the total number of electrons in the atom?

How will you find the valency of chlorine, Sulphur and magnesium?

If number of electrons in an atom is 8 and number of protons is also 8, then (i) what is the atomic number of the atom? and (ii) what is the charge on the atom?

A neutron is formed by an electron and a proton combining together. Therefore, it is neutral. Is it true or false?

The mass of an electron is about 1/2000 times that of proton. it is neutral. Is it true or false?

An isotope of iodine is used for making tincture iodine, which is used as a medicine. it is neutral. Is it true or false?

Rutherford’s alpha-particle scattering experiment was responsible for the discovery of:

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