Statement I: The most important factor in determining the chemical properties of an elements is the number of electrons in the outermost shell.
Statement II: The number of electrons in the outermost shell determines the bonding characteristic of the element.

Both statement 1 and statement 2 are correct and statement 2 is the correct explanation for statement 1

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Both statement 1 and statement 2 are correct but statement 2 is not the correct explanation for statement 1

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Statement 1 is correct but statement 2 is incorrect

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Statement 1 is incorrect but statement 2 is correct

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Both statement 1 and statement 2 are incorrect

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Solution

The correct option is A Both statement 1 and statement 2 are correct and statement 2 is the correct explanation for statement 1
The electrons in the outermost occupied shell (or shells) determine the chemical properties of the atom and is called the valence shell. Electrons in outer shells have higher average energy and are farther away from the nucleus than those in inner shells. This makes them more important in determining how the atom reacts chemically because the pull of the atom's nucleus upon them is weaker and more easily broken. In this way, a given element's reactivity is highly dependent upon its electronic configuration.

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Statement I: The most important factor in determining the chemical properties of an elements is the number of electrons in the outermost shell.Statement II: The number of electrons in the outermost shell determines the bonding characteristic of the element.

Statement I: The most important factor in determining the chemical properties of an elements is the number of electrons in the outermost shell.
Statement II: The number of electrons in the outermost shell determines the bonding characteristic of the element.