BIOCHEMISTRY
ATOMIC STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The number of neutrons in an atom
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The number of protons in an atom
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The mass number of the element
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the relative atomic mass of an element
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Detailed explanation-1: -The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
Detailed explanation-2: -The Proton The number of protons in an atom determines its elemental identity. NO TWO ELEMENTS HAVE THE SAME NUMBER OF PROTONS IN THEIR ATOMS. The number of protons in an atom is called the ATOMIC NUMBER of the element. Each element therefore has a unique atomic number.
Detailed explanation-3: -The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Detailed explanation-4: -The identity of an element is determined by the number of protons. One cannot alter the number of protons without altering the identity of the element. By adding a proton, the atomic number increases by one and the element identity changes.
Detailed explanation-5: -Fundamental Subatomic Particles The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.