Given below are two statements : Statement (I) : Both metal and non-metal exist in $\mathrm{p}$ and d-block…
Statement (I) : Both metal and non-metal exist in $\mathrm{p}$ and d-block elements.
Statement (II) : Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements, choose the most appropriate answer from the option given below:
- Both Statement I and Statement II are false
- Statement I is false but Statement II is true
- Statement I is true but Statement II is false
- Both Statement I and Statement II are true
Solution
I. In p-Block both metals and non metals are present but in d-Block only metals are present
p-block elements: The elements which are present in group . The elements in p-blocks are of all kind metals and non-metals.
Transition elements: Those elements which are in groups from three to twelve. They are called a transition because they are in between the s- block elements and p-block elements. For example, scandium, iron, zinc, etc. Transition elements are also known as d-block elements.
II. EN and IE of non-metals are greater than those of metals.
Ionization Energy: The amount of energy required to remove an electron from a gaseous atom is known as ionization energy.
- The size of non-metals is small as compared to metals due to which electrons are more tightly held in non-metals.
- Non-Metals are electronegative elements and tend to share or accept electrons in a chemical reaction.
- Due to the electrons accepting nature of non-metals, they gains more electrons to complete their octet.
- So, non-metals have high ionization enthalpy due to their small size and high electronegativity as compared to metal.
I - False, II-True
Asked in: JEE Main 2024 (01 Feb Shift 2)
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