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Subjects
Science State Board
Class 9
Atomic structure
Atomic particles - Rutherford’s and Bohr’s models
8.
Atoms and subatomic particles: Fill in the blanks
Exercise condition:
4.5
m.
Neutral
Hydrogen
Proton
Subatomic particles
Valency
Number of protons
Negative
Electron
Mass number
Atom
Nucleus
Empty space
1
.
An atom is electrically
.
2
.
is a negatively charged particle.
3
.
The basic unit of matter is
.
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