The atomic number of the element from the fol | vedclass

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Question

(C) The given atomic numbers correspond to the following elements:$32 \Rightarrow Ge$ (Germanium)$35 \Rightarrow Br$ (Bromine)$87 \Rightarrow Fr$ (Fra

Vedclass · Accepted Answer

$87$

Vedclass · Answer

(C) The given atomic numbers correspond to the following elements:$32 \Rightarrow Ge$ (Germanium)$35 \Rightarrow Br$ (Bromine)$87 \Rightarrow Fr$ (Francium)$19 \Rightarrow K$ (Potassium)Ionisation enthalpy generally decreases down a group and increases across a period.$Fr$ is an alkali metal located in the $7^{th}$ period and $1^{st}$ group.Due to its large atomic size and the shielding effect of inner shells,$Fr$ has the lowest $1^{st}$ ionisation enthalpy among the given elements.Therefore,the correct answer is $87$.

$(IP)_1$	$7.1 \ eV$
$(IP)_2$	$10.3 \ eV$
$(IP)_3$	$36.2 \ eV$
$(IP)_4$	$39.1 \ eV$

The atomic number of the element from the following with the lowest $1^{st}$ ionisation enthalpy is:

Similar Questions

The energy required to remove an electron of a gaseous atom from its ground state is called

In the long form of the periodic table,the elements having the lowest ionisation potentials are present in:

The ionization potential $(IP)$ values for an element are given below. Identify the element:
$(IP)_1$ $7.1 \ eV$
$(IP)_2$ $10.3 \ eV$
$(IP)_3$ $36.2 \ eV$
$(IP)_4$ $39.1 \ eV$

The incorrect statement among the following is:

The incorrect order of $1^{st}$ $IP$ of the elements is

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