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Question
X is defined by the number of protons. What is X?
X is defined by the number of protons. What is X?
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Solution
The correct option is C Element
An element is defined by the number of protons.
In an atom of an element, the number of protons corresponds to the atomic number.
For example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus.
An atom of the element has fixed number of protons, electrons and neutrons.
Cation is positively charged particle with one (or more) electron(s) less than the atom while anion is negatively charged particle with gain of one (or more) electron(s) than the atom.
An element is defined by the number of protons.
In an atom of an element, the number of protons corresponds to the atomic number.
For example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus.
An atom of the element has fixed number of protons, electrons and neutrons.
Cation is positively charged particle with one (or more) electron(s) less than the atom while anion is negatively charged particle with gain of one (or more) electron(s) than the atom.
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