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The Atom of an Element is Made up of 4 Protons, 5 Neutrons and 4 Electrons. What is Its Atomic Number and Mass Number? - Chemistry

The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What is its atomic number and mass number?

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Solution

Protons = 4, neutrons = 5, electrons = 4
Atomic number = 4,
Mass number = 4 + 5 = 9

Concept: Concept of Atomic Number
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Chapter 4: Atomic Structure - Exercise [Page 52]
Q 15
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Selina Concise Chemistry Class 8 ICSE
Chapter 4 Atomic Structure
Exercise | Q 15 | Page 52
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