1. Why does the first ionisation energy of atoms generally increase across a period?

As you go across the period, the number of protons increases, however the amount of shielding stays the same, so attraction of outer electrons to nucleus increases and more energy is required to remove an electron. Hence the ionisation energy increases.

Answered by Safia A. Chemistry tutor

3877 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

A white substance is placed on the table in front of you, explain what methods/techniques you could use to determine what compound the substance is


Can you explain acylation?


Describe the effects of changing the temperature on a reaction using Le Chatelier's princriple


Describe, with the aid of diagrams, what hydrogen bonding is in water.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences