Which element does not show positive oxidation state?

Important Questions on Classification of Elements and Periodicity in Properties

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 28

Due to addition of electrons in $\mathrm{d}$-orbital for transition element, the screening effect:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 29

The diagonal relationship of elements in the periodic table arises because of similarity in:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 30

The atom of an element $\mathrm{X}$ contains $27$ electrons. $\mathrm{X}$ is expected to be

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 31

The group in the periodic table that contains the elements in all the different physical states at room temperature is

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 32

The ion having a noble gas electronic configuration is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 33

Element with $\mathrm{Z}=83$ belongs to which block?

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 34

The element having electronegativity next to that of fluorine is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-4>Q 35

Atom with the largest electron affinity is