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Question
Which element from the following has the highest ionization energy?
Explain your choice.
P, Na, CI
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Solution
Cl
Metals have low ionisation energy and non-metals have high ionisation energy. Also, across the period, ionisation energy tends to increase. The elements P, Na and Cl belong to the third period. Na - Group 1, P - Group 15 and Cl - Group 17.
RELATED QUESTIONS
Choose the correct answer from the options given below:
Ionisation potential increases over a period from left to right because of the
(A) Atomic radius increases and nuclear charge increases
(B) Atomic radius decreases and nuclear charge decreases
(C) Atomic radius increases and nuclear charge decreases
(D) Atomic radius decreases and nuclear charge increases
Define the term ‘ionisation potential`.
Arrange the elements of second and third period in increasing order of ionization energy.
Give reason for the following:
Ionisation potential of the element increases across a period.
Which element has:
two shells, both of which are completely filled with electrons?
Among the elements of the second period, Li to Ne, pick out the element with highest first ionization energy
Fill in the blank by selecting the correct word from the option.
If an element has a low ionization energy then it is likely to be ________
Fill in the blank from the choice given in bracket.
The energy required to remove on electron from a natural isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
Arrange the following in order of increasing ionisation energy:
Ne, He, Ar
Explain your choice.
