MCQ - NIOS Class 10 Science & Technology What made Thomson conclude that all atoms must contain electrons ? 08/05/2023 WNA24 106 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 139 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 116 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology Name the element which has completely filled first shell. 08/05/2023 WNA24 105 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 70 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 97 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 96 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 127 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 101 Views 0 Comments Read more
MCQ - NIOS Class 10 Science & Technology How many neutrons are present in the α-particle? 08/05/2023 WNA24 129 Views 0 Comments Read more