MCQ - NIOS Class 10 Science & Technology What made Thomson conclude that all atoms must contain electrons ? 08/05/2023 WNA24 91 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology How did J.J. Thomson discover the electron? Explain his “plum pudding” modelof the atom. 08/05/2023 WNA24 118 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology Write the electronic configuration of an element having atomic number equal to 11. 08/05/2023 WNA24 84 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology Name the element which has completely filled first shell. 08/05/2023 WNA24 78 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology How many shells are occupied in the nitrogen (atomic number =7) atom? 08/05/2023 WNA24 54 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology Calculate the number of electrons, protons and neutrons in 40Ar18and 49K19. 08/05/2023 WNA24 75 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology What is the mass number of an atom which has 7 protons and 8 neutrons? 08/05/2023 WNA24 76 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology A sodium atom has an atomic number of 11 and a mass number of 23. Calculate the number of protons, electrons and neutrons in a sodium atom. 08/05/202308/05/2023 WNA24 94 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology How will you distinguish between an electron and a proton? 08/05/2023 WNA24 81 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology How many neutrons are present in the α-particle? 08/05/2023 WNA24 107 Views 0 Comments Read more