Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Rutherford’s alpha-particle scattering experiment was responsible for the discovery of
(a) Atomic nucleus
(b) Electron
(c) Proton
(d)Neutron
Correct Answer: (a) Atomic nucleus
Explanation: According to the Rutherford atomic model the positively charged particles and most of the mass of an atom were concentrated in an extremely small volume. He called this region as the atom a nucleus.
[Extra information: Ernest Rutherford described the Atom in his model. According to his experiments, he concluded that an atom has a tiny, massive core called the nucleus. The nucleus has a positive charge. Electrons are particles with a negative charge. Electrons orbit the nucleus. The empty space between the nucleus and the electrons takes up most of the volume of the atom.
The important facts about the nucleus of an atom gathered after Rutherford's alpha-particle scattering experiment is –
- The scattering of alpha particles was due to the repulsion from a positively charged centre in the gold foil.
- The heavy central part of the atom was called the nucleus. The nucleus of an atom is positively charged and is extremely hard and dense.
- The nucleus of an atom is very small as compared to the size of an atom as a whole and is concentrated in the centre of an atom.]
Updated on: 14-Mar-2023
24 Views
Advertisements