Why does the nucleus of an atom have a positive charge?

Answer 1

It's because of the presence of protons.

A nucleus of an atom has protons and neutrons. We know that a proton has a charge of #+1#, while a neutron has no charge, or #0#. Therefore, the nucleus of an atom will always have a positive charge.

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Answer 2

Adrian Ayala

The nucleus of an atom is constituted only by nucleons that can be protons or neutrons, in a number that is reported by the periodic table. Now, the charge of protons is always positive, the neutrons have no net charge (charge zero) then the total resulting charge of nucleus is positive, due only to the protons contribute.

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Answer 3

Emily Abbate

The nucleus of an atom has a positive charge because it contains positively charged particles called protons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.