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Structure of the Atom

Class 9 · Science · 2 practice questions · Free

Builds toward NEET: chemical bonding and molecular structure, modern physics

1

An atom is electrically neutral because it has equal numbers of:

Class 9 · Subatomic particles
2

Isotopes of an element have the same number of protons but a different number of:

Class 9 · Valency & isotopes