How many protons, ncutrons, and electrons are there in a neutral atom of "Am (americium-240)? protons:...

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Answer 1

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Answer #1

To calculate number of protons,neutrons and electrons following formulas are used:-

1. Number of protons = Atomic number

2. Number of neutrons = Mass number - Atomic number

3. Number of electrons = atomic number - charge

In this question ²⁴⁰Am has mass number = 240

Atomic number = 95

and the element is neutral, therefore charge is zero.

Now,

Number of protons = 95.

Number of electrons = 95-0

= 95

Number of neutrons = 240 - 95

= 145

Answer 2

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