Ionization Energy - Cabarrus County Schools

Warm-Up 10/5/2016 Place the following in increasing atomic size 1. N, Sr, I, Be 2. Li, Hg, Cs, F 3. Fr, Ga, K, Br

Write down the electronic configuration of the following elements in long hand form V Zr S Cr I

Ionization Energy Ionization Energy is the energy needed to remove an electron 1st Ionization Energy: energy required to remove the outermost electron

Ionization Energy Ionization Energy depends on: a. Distance an electron is from nucleus The further the electron is away, the easier it is to remove Ionization Energy Continued

Nuclear charge: refers to the attraction between the nucleus and electrons A.K.A the Shielding Effect The further away the electrons are, the less the attraction is between the nucleus and electrons

Trends with Ionization Energy The first Ionization energy decreases as you move down a group The first Ionization energy

increases as you move across the periodic table Ionization Energy Problems Arrange the following in terms of increasing ionization energy: A. Li, K, Cs, Na

B. Ca, Zn, Ge, Br C. In, B, Al, Ga D. Mg, P, Na, Cl Practice Place the following in increasing Ionization Energy Rb, Mo, Br, Fr

Cs, O, C, Be, F Au, Hf, Ba, Po, At Electronegativity Electronegativity is the tendency of elements to attract electrons Nonmetals attract electrons more than

metals Electronegativity Electronegativity is really the strength of an element to steal and keep electrons Electronegativity

Electronegativity is measured on a scale from 0 to 4 The most electronegative element is given a value of 4.0 Electronegativity Continued

Fluorine is the most electronegative and given a value of 4.0 O = 3.5 Cl = 3.0 S = 2.5 H = 2.1 Li = 1.0 Na = 0.9 Effects of Electronegativity

The more electronegative an element is, the more non-metallic it is Electronegativity The strength of other elements to steal electrons is compared to the most electronegative element

Trends in Electronegativity Electronegativity increases as you move across the table Electronegativity decreases as you move down the table Electronegativity can be used to predict which type of bond that atoms will form

Problems Arrange the following in terms of increasing electronegativity: a. K, As, Cr, Zn b. Sr, Y, Ag, I c. F, O, N, Li

d. Ga, Ca, Fe, K e. F, At, Cl, Br Electron Affinity Electron affinity is defined as the neutral atom's likelihood of gaining an electron. Electron Affinity of Metals

Metals have a lower EA than nonmetals because they give up electrons to have a stable octet. Electron Affinity of Nonmetals Nonmetals like to gain electrons to

form anions to have a fully stable octet. Electron Affinity Trend As the you go down the periodic table it decreases As you go across the periodic table it increases

Review Questions Place the following in increasing Electron Affinity Na, Rb, Al, P, Cl Fr, K, Na, Cs K, Mg, Si, S Cl, At, I, F

Trends with Ionic Size What are Ions? Ions form when electrons are gained or lost Metals lose electrons (called Cations) ; non-metals gain electrons( called Anions)

Trends with Ionic Size The metal ions are usually smaller than the metal atoms The non-metal ions are larger than the non-metal

atoms Ionic Size Trend The size of the ions increase going down the periodic table The size of cations decreases as you move across the table

The size of anions decreases as you move across the table Ionic Size Continued Cations are smaller than their corresponding atoms +

Na atom is larger than Na Anions are larger than their corresponding atoms F atom is smaller than F- Ionic Size Problems State which particle would have the largest radius in each pair:

a. Ca, Ca+2 b. Br, Br c. Cl -, Br -, d. Na+, K+ Practice Place the following in increasing electronegativity:

Fr, S, Na, Cl Place the following in increasing ionization energy: Cl , As, Ca, Ni Place the following in increasing atomic radius: I, Rb, Cs, Ru

For the following pairs of atoms, tell which one of each pair has the largest ionic radius a. Al, B b. S, O c. Br, Cl d. Na, Al e. O, F

For the following pairs of atoms, tell which one of each pair has the largest ionic radius a. Al b. S c. Br d. Na

e. O Indicate which element of the following pairs is the most electronegative. a. calcium, gallium b. lithium, oxygen c. chlorine, sulfur

d. bromine, arsenic Indicate which element of the following pairs is the most electronegative. a. gallium b. oxygen c. chlorine

d. bromine

Recently Viewed Presentations

  • Ethics and Deviance in Sport Part 2 - A Level PE

    Ethics and Deviance in Sport Part 2 - A Level PE

    Reason for taking drugs in sport "Everyone else is taking them". Sharapova (Tennis) Floyd Landis (Cycle) Consequences. Wonder if you lose to a clean athlete. Discredited sport! Discredited country and society. ... Ethics and Deviance in Sport Part 2
  • Maintenance Management Center Monthly CG Brief 18 October 2017

    Maintenance Management Center Monthly CG Brief 18 October 2017

    were corrected by Rockwell Automation in spring 2019 and released as Arena v16.00.01. The new version is a free upgrade from the . company. 18 Jun 2019: Arena v15.1 is approved; however, the license manager required to run . Arena...
  • SURVEYING ADVISEES TO IMPROVE ADVISING SERVICES? FIND OUT

    SURVEYING ADVISEES TO IMPROVE ADVISING SERVICES? FIND OUT

    When individuals who do not complete one's survey may differ on the variables under study from those who chose to complete the survey (Dillman, 2000; Mitra, Jain-Shukla, Robbings, Champion, & Durant, 2008)
  • Activating Strategy A chair will be placed in

    Activating Strategy A chair will be placed in

    Friction is a force that opposes motion between two surfaces. Instructional Approach(s): The teacher should present the information on the slide while the students record the important information on their notes. ... PowerPoint Presentation Last modified by:
  • Strategy and Planning of Legal Services

    Strategy and Planning of Legal Services

    This concept is defined in a leading British case (Saloman Vs. Salomon & Company (1897), that - "A company is a 'legal person' or 'legal entity' separate from , and capable of surviving beyond the lives of it's members, capable...
  • Third Sector Task and Finish Group Duration of

    Third Sector Task and Finish Group Duration of

    Third Sector Task and Finish Group July - December 2008 Councillor Diane Thomas (Chair) Councillor Kath Banks Councillor Jack Cookson Councillor RJ Farooqui
  • 先生 Xian sheng

    先生 Xian sheng

    Your travel agent told you that someone from your Chinese family, whom you have seen before, will come to the airport to pick you up. When you arrive at the China airport, you see a young lady who looks like...
  • Sounds of Poetry

    Sounds of Poetry

    Alliteration. The repetition of initial sounds at the beginnings of neighboring words. Poets use alliteration to call attention to a phrase and fix it into the reader's mind-- it is useful for emphasis.