GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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protons and electrons
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protons and neutrons
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electrons and neutrons
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only neutrons
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Detailed explanation-1: -Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. These are held together by the strongest known fundamental force, called the strong force. The nucleus makes up much less than . 01% of the volume of the atom, but typically contains more than 99.9% of the mass of the atom.
Detailed explanation-2: -Composition of the Atom. The atom consists of a tiny nucleus surrounded by moving electrons. The nucleus contains protons, which have a positive charge equal in magnitude to the electron’s negative charge. The nucleus may also contain neutrons, which have virtually the same mass but no charge.
Detailed explanation-3: -An atomic nuclei consist of positively charged particles (protons) and uncharged particles (neutrons).
Detailed explanation-4: -The total number of protons and neutrons in the nucleus of an atom is called its mass number.