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Recent posts under tag atom

+1 vote
1 answer
Over 99.9% of an atom's mass is concentrated in what part of the atom?
posted Jan 7, 2020 by Deepak Chitragar
  • atom
  • general
0 votes
0 answers
How many electrons are there in one Coulomb of charge ?
posted Aug 23, 2018 by anonymous
  • physics
  • atom
0 votes
1 answer
What is the charge on an electron and on an proton (in coulomb)
posted Aug 15, 2018 by anonymous
  • physics
  • atom
0 votes
1 answer
Who discovered neutron, one of the constituent particles of nucleus of an atom?
posted Aug 7, 2018 by anonymous
  • atom
  • discovery
  • personality
  • science
+1 vote
What chemical compound of 1 carbon and 4 hydrogen atoms is simplest alkane and principal component of natural gas? [MCQ]
posted Apr 26, 2018 by Anuradha Tabyal
  • gas
  • atom
+1 vote
0 answers
What were the names of the atom bombs which dropped in Hiroshima and Nagasaki city?
posted Aug 19, 2017 by Shyam Chakraborty
  • history
  • world war
  • atom
  • city
+1 vote
1 answer
The radii of 2 of 1st four Bohr's orbits of hydrogen atom are in ratio 1:4. What is the energy difference between them?
posted Jul 27, 2017 by Neha Rajput
  • science
  • atom
  • physics
+1 vote
1 answer
When electrons jump from 3rd orbit to 2nd orbit, how many field lines can be emitted by the atom?
posted Jul 27, 2017 by Neha Rajput
  • science
  • atom
  • physics
+1 vote
1 answer
Who discovered The Atomic Nucleus and in which year?
posted Apr 18, 2017 by Sahana
  • atom
  • science
  • invention
  • discovery
  • personality
0 votes
0 answers
What is the name the unit in which atomic radius is usually expressed?
posted Feb 21, 2017 by anonymous
  • science
  • atom
  • unit
+3 votes
1 answer
What is the difference between atomic number and atomic weight?
posted Jul 26, 2016 by anonymous
  • difference
  • science
  • atom
+1 vote
1 answer
What part of an atom has no charge?
posted Jun 20, 2016 by Divya Bharti
  • atom
0 votes
0 answers
In an atomic nucleus, neutrons and protons are held together by which force?
posted May 10, 2016 by Basabdatta Mukherjee
  • atom
  • force
0 votes
1 answer
Who suggested that most of the mass of the atom is located in the nucleus?
posted May 9, 2016 by Riteshwar
  • science
  • atom
0 votes
1 answer
What are the particles found in the center (nucleus) of the atom and what is the role of each particle?
posted Apr 13, 2016 by Saif Khanam
  • atom
  • science
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