Periodic Table Warm-up Which elements are in the noble gas family? Which elements’ electron configuration ends with s 2 ? How are elements ordered in the modern periodic table?

Periodic Table Warm-up Which elements are in the noble gas family? He, Ne, Ar, Kr, Xe, Rn Which elements’ electron configuration ends with s 2 ? Be, Mg, Ca, Sr, Ba, Ra How are elements ordered in the modern periodic table? By atomic # (# of protons)

Periodic Table Learning Target I will understand how the periodic table is arranged and understand trends within the periodic table.

Periodic Table Activity Make a Frayer model notecards for the following vocabulary terms from Chapter 5 (pgs ) in your book. Periodic lawIon Ionization energy Transition elementsElectron affinity Main-group elementsValence electrons Atomic radiusElectronegativity

Periodic Table Warm-up Name an element that can easily lose an electron to form an ion. Name an element that can easily gain an electron to form an ion.

Periodic Table Warm-up Name an element that can easily lose an electron to form an ion. Elements from the bottom left corner of the periodic table Name an element that can easily gain an electron to form an ion. Elements from the top right corner of the periodic table

Periodic Table Learning Target I can use the periodic table to predict the reactivity of a main group element.

Periodic Table Vocabulary Review Periodic law: The physical and chemical properties of elements are a periodic functions of their atomic #s Ionization energy: how easily an electron can be removed from a neutral element Electron affinity: the energy change that occurs when a neutral element gains an electron Valence electrons: outer shell electrons available to be lost, gained, or shared

Periodic Table

The number of outer shell (valence electrons) determines the reactivity of an element.

Periodic Table Atoms will gain or lose electrons to form ions according to their electron configuration. An ion with a full outer shell of eight electrons like a noble gas is the most stable. This is called an octet.