Answer
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Hint: An element is a substance whose atoms all have the same number of protons; another way to put it is that all of the atoms in a given element have the same atomic number. Chemically, elements are the most basic compounds and hence cannot be broken down by chemical reactions.
Complete answer:
The difference in energy (in kJ/mol) of a neutral atom (in the gaseous phase) when an electron is introduced to form a negative ion is known as electron affinity. In other words, the probability of a neutral atom receiving an electron.
The ability of an atom to draw mutual electrons (or electron density) to itself is known as electronegativity. The electronegativity of an atom is determined by its atomic number as well as the difference between the valence electrons and the charged nucleus.
The tendency of an element to draw electrons towards itself in a common pair of electrons is known as electronegativity. Electron affinity refers to an isolated atom's attraction towards an external electron, while electronegativity refers to an element's ability to attract electrons towards itself in a shared pair of electrons.
Electron affinity can be measured experimentally, while electronegativity is a relative number.
Hence option C is correct.
Note:
Relative numbers or values are those that are based on the values of other numbers. They are, in other words, proportional to other (absolute) numbers. Most of the time, those other absolute figures aren't even mentioned. For eg, two out of every five buses speed on the road.
Complete answer:
The difference in energy (in kJ/mol) of a neutral atom (in the gaseous phase) when an electron is introduced to form a negative ion is known as electron affinity. In other words, the probability of a neutral atom receiving an electron.
The ability of an atom to draw mutual electrons (or electron density) to itself is known as electronegativity. The electronegativity of an atom is determined by its atomic number as well as the difference between the valence electrons and the charged nucleus.
The tendency of an element to draw electrons towards itself in a common pair of electrons is known as electronegativity. Electron affinity refers to an isolated atom's attraction towards an external electron, while electronegativity refers to an element's ability to attract electrons towards itself in a shared pair of electrons.
Electron affinity can be measured experimentally, while electronegativity is a relative number.
Hence option C is correct.
Note:
Relative numbers or values are those that are based on the values of other numbers. They are, in other words, proportional to other (absolute) numbers. Most of the time, those other absolute figures aren't even mentioned. For eg, two out of every five buses speed on the road.
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