ATOMIC NUMBER 1st IONISATION ENERGY / kJmol-1 Variation in 1st Ionisation Energy EXPLANATION Despite having a nuclear charge of only 1+, Hydrogen has a relatively high 1st…

Periodic Trends * What is the radius of a circle? What would the atomic radius be? * l. Atomic Radius The electron cloud surrounding a nucleus is based on probability and…

Periodic Trends Atomic Radius Atomic Radius Defined as half the distance between the nuclei of two atoms Going across the periodic table But why are they smaller towards…

Valence Electrons Electrons available to be lost, gained, or shared in the formation of chemical compounds Outer energy level Atomic Radius Distance from the center of atom’s…

Question 1 Which of the following properties of the halogens increase from F to I? I. Atomic radius II. Melting point III. Electronegativity Answer: B (atomic radius &…

Section 4.6 Periodic Trends of the Elements Section 4.6 Periodic Trends of the Elements Supplemental packet page 58 Lewis Electron-dot Symbols - A Periodic Trend   G.N.…

Camp 1 Instructor: Dr. Upali Siriwardane e-mail: [email protected] Office: CTH 311 Phone 257-4941 Office Hours: M,W 8:00-9:00 & 11:00-12:00 am; Tu,Th, F 10:00 - 12:00…

Dot-Cross Diagrams Halogens Objectives Be able to... Recall the main properties and trends of the Halogens Explain trends using knowledge of intermolecular bonding and redox…

P-BLOCK ELEMENTS. P-BLOCK ELEMENTS. Lanthanides Actinides Transition metals Alkali Metals Alkaline Earth Metals Halogens Noble Gases Boron Family Carbon Family Nitrogen Family…

IONISATION ENERGY WHAT IS IONISATION ENERGY? Ionisation Energy is a measure of the amount of energy needed to remove electrons from atoms. As electrons are negatively charged…