Ions and Isotopes Warm up: use your periodic table! – 1. What kind of bond can occur between a fluorine atom and a lithium atom? – 2. What kind of bond.

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Presentation transcript:

Ions and Isotopes Warm up: use your periodic table! – 1. What kind of bond can occur between a fluorine atom and a lithium atom? – 2. What kind of bond can occur between a fluorine and boron atom? – 3. Write the symbol of a chlorine atom that gains an electron.

Covalent Bonds Only occurs between 2 nonmetal elements; the bonding electrons are shared.

Ionic Bonds Only between a metal and nonmetal; the valence electrons are given up or gained completely, not shared.

Covalent and Ionic Bonds What kind of bond would a nitrogen and hydrogen atom form? (Use your periodic table)

Group Questions A compound of potassium permanganate has a formula of KMnO 4 How many elements are in potassium permanganate? How many atoms?

Chemical Compounds The amount of elements in a compound is the amount of symbols in the formula. The amount of atoms is the amount of each element added up. – For potassium permanganate, its (1+1+4) which is 6.

Activity 17 Analysis

Activity 17 In Case You Missed It... Valence electrons- the electrons that bond to other atoms in a molecule.

Activity 17 In Case You Missed It... Covalent bond- when two atoms share a pair of electrons in order to obtain a full outer shell. Only occurs between 2 nonmetals. Ionic bond- when two atoms exchange electrons (not sharing) to obtain a full outer shell. Only occurs between a metal and nonmetal.

Activity 17 In Case You Missed It... A compound is a substance made up of more than one kind of element, bonded together to form molecules.

Elements, Ions, and Isotopes...Oh my! “Element, Ions, and Isotopes...Oh my!” in the Content Library First part is a review of most of the things we have learned. DO ON YOUR OWN. Second part is today’s activity; you may work with one partner.

Elements, Ions, and Isotopes...Oh my! Be sure to read the introduction! It has important information! Like what an isotope is.

Elements, Ions, and Isotopes...Oh my! Directions: – With your partner, make your way to each bag at the lab tables. – Be sure you match the correct bag in the chart (Bag A goes under A, etc.) – Fill out the data according to the bags. Black marbles= protons Blue marbles= neutrons Electrons are written on the label – Do not remove the marbles from the bags!

Ions What is an ion? Ion- when an element has differing electrons, causing it to have an overall next charge. The protons stay the same, but the electrons increase or decrease.

Isotopes What is an isotope? Isotope- a different version of the same element; the protons are the same but the neutrons are different, changing the atomic mass.

Tonight’s Homework If you turned in your Act. 17 UC assessment, you have no homework. Enjoy fall break! See you at conferences!