Join TSR now and get all your revision questions answeredSign up now

High ionisation energy???

    • Thread Starter
    Offline

    2
    ReputationRep:
    Hey guys god I'm so confused!!!!how do you get high ionisation energy and what are the reasons???
    Offline

    2
    ReputationRep:
    (Original post by skhan99)
    Hey guys god I'm so confused!!!!how do you get high ionisation energy and what are the reasons???
    A high ionisation energy means a lot of energy is required to lose the electron.

    3 things affect the ionisation energy:

    1: Nuclear charge (the number of protons in the nucleus). The greater the number of protons in the nucleus, the stronger the attraction for the electrons.

    2: Distance from the nucleus, an electron close to the nucleus (1S, 2S, 2P) is held more tightly than one further away (3S, 3P, 3D) therefore the closer the electron is to the nucleus the more energy it will require to remove it.

    3: Shielding, the outer electrons will be shielded by the inner shells of electrons, so will have less attraction to the nucleus and be more easily lost (having a lower activation energy).

    Hope that helps
    • Thread Starter
    Offline

    2
    ReputationRep:
    So so helpful!!!thanks so much 😊
    (Original post by JakeAntonyBrown)
    A high ionisation energy means a lot of energy is required to lose the electron.

    3 things affect the ionisation energy:

    1: Nuclear charge (the number of protons in the nucleus). The greater the number of protons in the nucleus, the stronger the attraction for the electrons.

    2: Distance from the nucleus, an electron close to the nucleus (1S, 2S, 2P) is held more tightly than one further away (3S, 3P, 3D) therefore the closer the electron is to the nucleus the more energy it will require to remove it.

    3: Shielding, the outer electrons will be shielded by the inner shells of electrons, so will have less attraction to the nucleus and be more easily lost (having a lower activation energy).

    Hope that helps
    Offline

    3
    ReputationRep:
    (Original post by skhan99)
    Hey guys god I'm so confused!!!!how do you get high ionisation energy and what are the reasons???
    Just to rephrase the great answer someone already gave, for something to have a high ionisation energy it would have to have a strong nuclear charge, a small atomic radius and as few electron shells as possible. Having these allows the nuclear charge of the nucleus to be felt more strongly by the electrons so they are more attracted to the nucleus and will thus require more energy to ionise and overcome this attraction.
    • Thread Starter
    Offline

    2
    ReputationRep:
    Thank you very much!!
    (Original post by elish2chambers)
    Just to rephrase the great answer someone already gave, for something to have a high ionisation energy it would have to have a strong nuclear charge, a small atomic radius and as few electron shells as possible. Having these allows the nuclear charge of the nucleus to be felt more strongly by the electrons so they are more attracted to the nucleus and will thus require more energy to ionise and overcome this attraction.
 
 
 
Poll
Do you have exam superstitions?
Help with your A-levels

All the essentials

The adventure begins mug

Student life: what to expect

What it's really like going to uni

Rosette

Essay expert

Learn to write like a pro with our ultimate essay guide.

Uni match

Uni match

Our tool will help you find the perfect course for you

Study planner

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Study planner

Resources by subject

Everything from mind maps to class notes.

Hands typing

Degrees without fees

Discover more about degree-level apprenticeships.

A student doing homework

Study tips from A* students

Students who got top grades in their A-levels share their secrets

Study help links and info

Can you help? Study help unanswered threadsRules and posting guidelines

Sponsored content:

HEAR

HEAR

Find out how a Higher Education Achievement Report can help you prove your achievements.

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.