Adaptive Practice
Structure of the Atom
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Question 1 of 10
⏱ 0:30
Easy
Who proposed the 'Plum Pudding Model' of the atom?
Easy
Which subatomic particle has a positive charge?
Easy
The nucleus of an atom contains:
Medium
Who discovered the nucleus of the atom?
Medium
Which of the following statements about electrons is correct?
Easy
The atomic number of an element is equal to:
Medium
Which particle contributes to the atomic mass but has no charge?
Medium
In Bohr’s model of the atom, electrons revolve around the nucleus in:
Hard
If an atom has 11 protons, 12 neutrons, and 11 electrons, its atomic mass and atomic number are respectively:
Hard
Which experiment led to the discovery that most of the atom's mass is concentrated in a small nucleus?