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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons. What is the mass number of X?

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प्रश्न

A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is the mass number of X?

संख्यात्मक
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उत्तर

Given: Protons = 17

Neutrons = 20

Formula: Mass Number = Number of Protons + Number of Neutrons

= 17 + 20

= 37

So, the mass number of particle X is 37.

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पाठ 4: Atoms, Molecules and Radicals - Additional questions

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atoms, Molecules and Radicals
Additional questions | Q 22.2

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