 Smallest part of an element with all the properties of that element.  2 parts.

Slides:

Advertisements

Similar presentations

Structure of the Atom. Elements form every object in the world have characteristic properties including: State (solid, liquid, gas) Boiling/melting points.

Advertisements

nucleus of atom + Protons OSITIVEOSITIVE + Neutral OCHARGEOCHARGE Electrons NGATIVENGATIVE - +

The Chemistry of Life.

Atomic Structure.

Atoms 8.5A The student is expected to describe the structure of atoms, including the masses, electrical charges, and locations, of protons and neutrons.

Atomic Theory Modern Model. atom (page 313) smallest part of an element that has all the properties of the element.

Explaining the Periodic Table (6.7) If elements are the building blocks of all other matter, what are they made of? There are three particles that make.

Chapter 4.  Smallest part of an element that retains the properties of that element  all elements are made of indivisible atoms.

Bohr Models are NOT Boring!

PRACTICE DRAWING ATOMS. DRAWING ATOMS RULES PROTONS = Atomic number ELECTRONS = Atomic number NEUTRONS = mass number – atomic number 1 st level can hold.

Atomic Number ● Symbol ● Atomic Weight Element ● Compound ● Mixture.

The Bohr Model of the Atom Topic #6. EQ How can you identify an element based on the number of electrons and valence electrons?

1. What is an atom? The smallest unit of an element that still has all the properties of that element. 2. Where are atoms found? Atoms are found in everything.

ATOMS Basic building blocks of all matter.

Atom Practical Review. Name the subatomic particles? Protons, Neutron, and Electrons.

Unit 2 Atomic Theory. An atom is… The smallest particle into which an element can be divided. “Building block of matter”

Atomic Structure. Rules Of Atomic Structure 1.The Number of electrons = number of protons 2.Atomic Number = the number of protons/electrons 3.Atomic Mass.

Atomic Structure. What is an atom? Atom: the smallest unit of matter that retains the identity of the substance.

Structure of the Atom. Chemical symbol- an abbreviated way to write the name of an element. Chemical symbol- an abbreviated way to write the name of an.

18 Bohr Models Lesson 3.1 Extension. Element Name: _______________________ Chemical Symbol: _______Atomic Number: _______ Diagram the Bohr atom which.

Bohr Model Diagrams Lesson 3.1 Extension.

CHEMISTRY PART 1 Atoms and The Periodic Table. Definitions  Chemistry:  The study of the structure and properties of matter.  Element:  A substance.

Matter Intro Chapter. Anything that has mass and volume. It is made up of atoms. Matter.

ATOMS REVIEW 2014 December Benchmark. AN ATOM IS CONSIDERED TO BE NEUTRAL IF IT HAS EQUAL PARTS OF ______________ AND _________________. An atom is considered.

You need to remember some basic things

Do the pre-assessment on a separate sheet of paper.

Atoms Is made Up of 2 Parts: The Nucleus: 1. Protons 2. Neutrons The Rings: 1. Electrons.

Exploring Inner Space TEKS 8.5A describe the structure of atoms including the masses, electrical charges and locations, of protons and neutrons in the.

Matter Intro Chapter. Anything that has mass and volume. Matter.

Matter & Atoms Unit 2. Matter Matter – anything that has mass and takes up space. Matter is made up of MUCH smaller particles known as atoms. 1)

What is the smallest unit of matter? An atom What is an atom made of? Subatomic particles protons (p + ) – positive charge neutrons (n) – no charge.

ATOM NEUTRONS Charge: none Mass: 1 amu Location: nucleus ELECTRONS Charge: negative Mass: zero Location: electron cloud PROTONS Charge: positive Mass:

Outline the history of the atomic model. Agenda for Tuesday Dec 14 th 1.Atoms 2.Atomic mass, #, protons, etc.

Bohr Diagrams for Atoms. Showing Protons, Neutrons and Electron Arrangements for neutral atoms of the First 20 Elements.

PROTON Proton: the positively charged particle found in the nucleus of an atom.

The Amazing Atom. Atoms All matter is made of very tiny particles All matter is made of very tiny particles These atoms have the same properties as larger.

Bohr Models are NOT Boring! How to Draw Bohr Diagrams.

Atoms: Building Blocks of Matter

MATTER What is Matter? What are the Parts of an Atom? How do you Read the Periodic Table of Elements?

Atomic Structure. Elements All elements are composed of only one type of atom. In these atoms are three subatomic particles: Protons Neutrons Electrons.

Reading the Periodic Table: Element Squares. Atomic Structure Nucleus Electron Cloud.

What part of an atom is the arrow pointing to? A. proton B. electron C. neutron D. shell E. nucleus.

Unit 3: The Atom. Atoms All matter is made of very tiny particles All matter is made of very tiny particles These particles have the same properties as.

Atomic Mass. Each element found on the periodic table of elements is given an atomic mass The atomic mass tells you the average mass of the atoms of an.

Atoms. Structure of Atoms  Atoms are made up of subatomic particles:

Atomic Structure.

Parts of an Atom Proton, Neutron & Electron Proton (p+)

The Atom Unit 4 Chemistry. DO NOW 11/16/15  Answer the following questions  What do you know about the atom (ex: what is it made of?)  How big is the.

Atomic Structure. Anything that has a mass and a volume Matter is made up of different kinds of atoms.

Understanding Atoms Atoms = smallest parts of matter Atoms have 3 main parts Protons (positive charge) Neutrons (no charge) Electrons (negative charge)

Atoms and Elements. Subatomic Particles Atom- Smallest particle of an element. Subatomic Particles- Atoms are composed of protons, neutrons, and electrons.

Electrons & their arrangement in an atom. Electrons live in something called energy levels. Only so many electrons can be in any energy level. The electrons.

ATOMIC THEORY REVIEW. ATOMS !!! What are the 3 subatomic particles? Protons, neutrons, & electrons!!! WHAT IS ALL MATTER MADE OF?

Interpreting the Periodic Table H He LiBeBCNOFNe NaMg KCa AlSiPSClAr

Atomic number = number of protons # protons = # electrons IN NEUTRAL ATOMS.

Using the Main Group Elements of the Periodic Table to Draw Bohr-Rutherford Diagrams He

Bohr Model Gallery.

Today in Physical Science 

Complete this on a new sheet of paper!

Topic #8: Bohr Models and Lewis dot Diagrams

Do these steps on the front of the worksheet

Bohr Diagram, Electron configurations, and charges

Unit 1 Vocabulary Atom – smallest particle of an element that maintains the properties of that element Atomic mass – average mass of one atom of an element.

Atomic Structure Notes

Bohr Diagrams Rules and Directions.

Atomic Structure.

Electron Energy Levels

Presentation transcript:

 Smallest part of an element with all the properties of that element.  2 parts

 Center of atom  most of atomic mass  contains protons & neutrons Nucleus

5 B Boron Mass  Mass # = Mass of the nucleus  1 proton = 1amu (atomic mass unit)  1 neutron = 1 amu  The average # protons + # neutrons  Electrons too small to contribute to mass

11NaSodium CrChromium KrKrypton83.80 Na = 23 Cr = 52 Kr = 84 A.11 B.23 C D.22 A.24 B.51 C D.52 A.36 B.83 C D.84

 Cloud of electrons that surrounds the nucleus  Individual electrons move so fast, they appear as a cloud  Most of the volume of the atom.  Mostly empty space. - - Electron Cloud

1. Protons: positive charge (+) located in nucleus 2. Neutrons: neutral charge (=) located in nucleus 3. Electrons: negative charge (-) located in the electron cloud

 # protons (positive charges) = atomic #  Atoms of different elements have different numbers of protons. 5 B Boron = = = = = = Atomic Number

11NaSodium CrChromium KrKrypton83.80 Na = 11+ Cr = 24+ Kr = 36+ A.36 B.83 C D.84 A.24 B.51 C D.52 A.11 B.23 C D.22

 Which atom has 8 protons?  Which atom has 6 protons?  Which atom has 7 protons? A. CarbonB. Nitrogen C. OxygenD. Moccium6CCarbon12.017NNitrogen14.008OOxygen15.99Oxygen Carbon Nitrogen

 # neutrons (neutral, no charge) = mass – protons (atomic #) 5 B Boron = = = = = = Atomic Number (# protons) Mass (# protons + # neutrons 11 (rounded) -5 6 neutrons

11NaSodium CrChromium KrKrypton83.80Na = 12 = Cr = 28 =Kr = 48 = A.11 B.12 C D.22 A.24 B.26 C.28 D.52 A.36 B.48 C D.84

 # electrons (negative) = # protons (atomic #)  # negative charges = # positive charges, the atom is neutrally charged (has no charge) 5 B Boron = = = = = = Atomic Number

11NaSodium CrChromium KrKrypton83.80 Na = 11- Cr = 24- Kr = 36- A.36 B.83 C D.84 A.24 B.51 C D.52 A.11 B.23 C D.22

13 Al Aluminum How many protons (+) does an atom of Aluminum have? 2. How many electrons (-) does an atom of Aluminum have? 3. How many neutrons (=) does an atom of Aluminum have? 27 (mass #) -13 (atomic #) 14 = 14 = A.13B. 14 C. 26D. 27 A.13B. 14 C. 26D. 27 A.13B. 14 C. 26D. 27

12 Mg Magnesium How many protons (+) does an atom of Magnesium have? 2. How many electrons (-) does an atom of Magnesium have? 3. How many neutrons (=) does an atom of Magnesium have? 24 (mass #) -12 (atomic #) 12 = 12 = A.12B. 13 C. 24D. 25 A.12B. 13 C. 24D. 25 A.12B. 13 C. 24D. 25

15 P Phosphorus How many protons (+) does an atom of Phosphorus have? 2. How many electrons (-) does an atom of Phosphorus have? 3. How many neutrons (=) does an atom of Phosphorus have? 31 (mass #) -15 (atomic #) 16 = 16 = A.15B. 16 C. 30D. 31 A.15B. 16 C. 30D. 31 A.15B. 16 C. 30D. 31

Element Atomic # Mass # Protons+Neutrons=Electrons-Boron511 Neon2010 Fluorine How many protons (+), neutrons (=), and electrons (-) does an atom of Boron have? A.5 (+), 5(=), 5(-)B. 11(+), 11(=), 11(-) C. 5 (+), 6(=), 5(-)D. 5(+), 11(=), 5(-) What is the atomic # of Neon, and how many protons (+) and neutrons (=) does an atom of it have? A.At#10, 20(+), 10(=)B. At#10, 10(+), 10(=) C. At#20, 10(+), 10(=)D. At#10, 10(+), 20(=) What is the atomic # and mass of Fluorine, and how many electrons (-) does an atom of it have? A.At#10, mass 19, 10(-)B. At#19, mass 9, 9(-) C. At#9, mass 10, 9(-)D. At#9, mass 19, 9(-)

 # shells = # of ROW on Periodic Table 5 B Boron = = = = = = nd Row 2 Energy Levels

 1 st Shell = No more than 2  2 nd Shell = No more than 8  3 rd Shell = No more than 8  Last Shell = # of COLUMN on Periodic Table 5 B Boron = = = = = = Electrons 2 Electrons in 1 st shell B is in 3 rd Column  3 electrons in last shell

 Teacher demonstrates diagramming atoms with atomic #1, #2, #3, #10, #18  Students work with partners – one sheet of paper per team.  Take turns diagramming the atoms. While one draws, the other checks work.  One person diagrams the odd numbered elements, partner checks work.  The other person diagrams the even numbered elements, partner checks work.