SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What charge does the nucleus have and why?
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positive-the neutrons do not have a charge
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positive-the neutrons and protons are positively charged particles
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neutral-the neutral charge dominates the positive charge
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neutral-electrons cancel out the positive charge of the atom
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Explanation:
Detailed explanation-1: -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.
Detailed explanation-2: -An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral.
Detailed explanation-3: -A neutron is made of two down quarks and one up quark. One up quark has a charge of +2/3, and the two down quarks each have a charge of-1/3. The fact that these charges cancel out is why neutrons have a neutral (0) charge.
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