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An element X consists of 20 protons and ...

An element X consists of 20 protons and 20 neutrons. Mention the atomic number and mass number, and represent the element with atomic number and mass number.

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To solve the problem step by step, we will determine the atomic number and mass number of the element X, which consists of 20 protons and 20 neutrons. ### Step 1: Identify the atomic number The atomic number of an element is defined as the number of protons in its nucleus. - Given: Number of protons = 20 - Therefore, Atomic Number (Z) = 20 ...
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