#1
Who proposed the first atomic theory?
#2
What is the primary factor that differentiates isotopes of an element?
#3
What is the primary force that holds the nucleus of an atom together?
#4
In the context of atomic theory, what does the term 'quantum leap' refer to?
#5
What is the fundamental concept of Dalton's atomic theory?
#6
Who discovered the electron and proposed the 'plum pudding' model of the atom?
#7
What is the name of the experiment conducted by Rutherford that led to the discovery of the atomic nucleus?
#8
Which of the following elements did Mendeleev leave gaps for in his periodic table, predicting the existence of undiscovered elements?
#9
Who proposed the concept of the neutron as a neutral subatomic particle in the nucleus?
#10
Which scientist proposed the concept of the wave-particle duality of electrons?
#11
Which scientist developed the planetary model of the atom with electrons orbiting the nucleus in specific energy levels?
#12
Who proposed the uncertainty principle, stating that it is impossible to simultaneously know the exact position and momentum of a particle?
#13
In Bohr's model of the atom, what is the significance of electrons residing in specific energy levels or orbits?
#14
Which scientist introduced the concept of quantum numbers and the quantum mechanical model of the atom?
#15
Which of the following elements was the first to be artificially synthesized by scientists?
#16