Do Now : How do you think an atom can be changed

Slides:

Advertisements

Similar presentations

Atomic Structure Section The Nucleus Nucleus- contains most of the mass of an atom – Protons & Neutrons contains most of an atom’s mass – Electrons-

Advertisements

1.1 The Nature of Atoms Learning Goals determine the number of protons, electrons and neutrons in an atom or ion... distinguish between a cation.

Inside an Atom. The Atom As A Model Structure of an Atom Atoms consist of protons, electron, and neutrons Atoms consist of protons, electron, and neutrons.

Atoms. The basic building blocks of matter They make up everything found in the world around us. You are even made up of atoms! Atoms are made up of three.

Lec: Isotopes and Ions. An Isotope is an element that has the same number of protons but a different number of neutrons.

The Chemical Compounds of Life Basic chemistry. Matter Anything that has mass and takes up space is matter. There are about 103 naturally occurring different.

The Atom the smallest unit of an element protons and neutrons in nucleus surrounded by one or > shells of electrons neutral atoms: # protons = # electrons.

Do Now Please write HW in your agenda. Please update your table of contents. Please take the sheet from the front cart, fold it as a booklet with the table.

Isotopes and Ions.

What is an atom ? Smallest unit of matter. Atoms combine together to form molecules Atoms are made of subatomic particles: Protons Neutrons Electrons.

Isotope: Same element (same number of protons) but with different number of neutrons. Same # of Protons Different amount of Neutrons We know these are.

CHEMICAL BONDS. IONIC BONDS  Form when electrons are completely transferred from one atom to another. Atoms are electrically neutral.  Charged particles.

Unit: Atomic Structure Ions: Cations, Anions and their Abbreviations Day 3 - Notes.

Isotopes and Ions. Isotopes Atoms of the same element that have different masses Have the same number of protons and electrons but different numbers of.

Atomic Number The number of protons in an atom Also, the number of electrons in a neutral atom.

Ion a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons Ions DO.

Ions When atoms lose or gain electrons. Proton = + charge Neutron = neutral charge Electron = - charge Structure of an Atom.

Valence electrons Valence electrons are those electrons that are lost or gained when elements combine.

Chemical Bonds Ionic and Covalent Bonds. Chemical Bonds.

Parts of the Atom.

Ions and Bonding Notes.

ATOMIC STRUCTURE.

Forming Compounds Science 10 Ms. McGrath.

Isotopes vs. Ions.

Living things consist of atoms of different elements.

Isotopes and Ions Do Now – Explain how atoms of different elements differ from one another. Give a specific example.

Covalent and Ionic Bonding

Forming compounds day 2 Ionic Bonds

Living things consist of atoms of different elements.

Atoms/ molecules that have lost or gained electrons

Bellwork: What are the types of orbitals?

Living things consist of atoms of different elements.

Subatomic particles.

Atomic Structure d. Atomic Structure d Atomic Structure d Electron (negative) Neutron (neutral) Proton (positive) d nucleus.

What would happen if the number of protons were to change in an atom?

Atoms and Elements.

Nomenclature & Chemical Bonding

Chemistry-Part 1 Inside the Atom

Isotope -an atom with a different number of NEUTRONS than protons.

Elements, Isotopes and More

Example: Oxygen – oxygen atoms; Hydrogen – hydrogen atoms

Living things consist of atoms of different elements.

Isotopes and Ions.

Ions An ion is an atom or molecule with an electric charge.

Bonding Basics 8th Grade Science.

How many atoms combined to form these two water molecules?

How are Atoms of the Same Element Different

Octet Rule & Ions Unit 1 Notes.

Atoms, Isotopes and Ions

Atomic Structure Electron Configuration, Valence Electrons, and Ions

Atomic Structure.

Basics of Biochemistry

Living things consist of atoms of different elements.

MT 2 Chemical Bonds Terms.

Living things consist of atoms of different elements.

Isotopes & Ions.

Bonding – Introduction May 12

10T2K© Atoms and bonds.

Building a “Cereal” Atom

Living things consist of atoms of different elements.

Isotopes and Ions.

Ions An atom with a positive or negative charge

Atomic number Atomic mass.

Structure of an Atom What is an ATOM??? Pg

Isotopes and Ions.

Isotopes and Ions Variations on the Atom.

neutral equal electrons Atomic Number = Protons Element Symbol

Presentation transcript:

Lesson Objective: Describing how an atom can be changed and what it changes into Do Now : How do you think an atom can be changed?(SILENTLY AND INDEPENDENTLY, 5 POINTS)

Changes to an Atom

Adding Atoms

Molecules An atom that is _____________________ with one or more other atoms. chemically bonded H2 + =

Atoms want to be complete. Cl Na A sodium atom needs _______ electrons to complete its last shell. A chlorine atom needs _______ electron to complete its last shell. 7 1

MESSING WITH THE ELECTRONS

MESSING WITH THE ELECTRONS SO LETS ADD AN ELECTRON AND SEE WHAT HAPPENS. CHLORINE NEEDS ONE MORE VALENCE ELECTRON! CHLORINE ATOM

More electrons then protons. Ions An atom that carries a positive or negative electric charge as a result of having _____________________one or more electrons. lost or gained = ANION (NEGATIVE ION) + 1 ELECTRON 17 Protons 18 Electrons More electrons then protons. CHLORINE ATOM

WHAT IF I TAKE AWAY AN ELECTRON SODIUM ONLY HAS ONE VALENCE ELECTRON AND DOESN’T NEED IT. SO LETS GET RID OF THAT ELECTRON AND SEE WHAT HAPPENS. SODIUM ATOM

More protons then electrons. Ions An atom that carries a positive or negative electric charge as a result of having lost or gained one or more electrons. _ = CATION (POSITIVE ION) 1 ELECTRON 10 Electrons 11 Protons SODIUM ATOM More protons then electrons.

Review Atom Cation Anion (+) (-) Loss of electron(s) Gain of electron(s) Cation (+) Anion (-)

MESSING WITH THE NEUTRONS

Adding an Neutron Lets take a carbon atom. Carbon has 6 Electrons 6 Protons 6 Neutrons This would be classified as Carbon-12 We’re going to focus on the amount of neutrons.

Isotope Proton- 6 Proton- 6 Electron- 6 Electron- 6 Neutron- 6 Versions of an element that have the same number of protons, but different numbers of neutrons. Carbon C-13 Carbon C-12 Proton- 6 Electron- 6 Neutron- 6 Proton- 6 Electron- 6 Neutron- 7 Gains 1 neutron

Some elements have more then one isotope Carbon C-14 Carbon Proton- 6 Electron- 6 Neutron- 6 Proton- 6 Electron- 6 Neutron- 8 Gains 2 neutron

But what about changing those protons…… What do we know so far….. Changing the amount of electrons causes the atom to become an _________________ Changing the amount of Neutrons causes the atom to become An ___________________ Ion Isotope But what about changing those protons……

A Hydrogen Atom has only 1 Proton. Elements Every element has an atomic number. This atomic number says the amount of protons that atom has. 1 H A Hydrogen Atom has only 1 Proton. Hydrogen 1.008 Lets give Hydrogen another Proton and see what happens……

He H + Lets give Hydrogen another Proton and see what happens…… 1 2 NOW BECOMES HELEIUM 1 PROTON Hydrogen Helium 1.008 4.002 Changing the atomic number, changes the element.