Atoms 8.8a Describe the structure and parts of an atoms. Verb: describe Noun: structure and parts...

8.8a Describe the structure and parts of an atoms.

Verb: describeNoun: structure and parts

Context: atomDescribe- to give an account of in words.

• All Matter is made of atoms

• Atoms are the smallest particle of an Element– Example: Smallest piece of gold is a gold

• All the atoms of an Element are almost exactly the same

• Different Elements are made of different atoms– Ex:

• Lithium

• Helium

What are the parts of an atom?

• Subatomic particles

• Subatomic particles– Protons– Neutrons– Electrons

– Protons – Positive (+) charge– have mass = 1amu– In the nucleus

– Neutrons – No charge (0)– have mass= 1amu– In the nucleus

– Electrons –

Negative (-) Charge

has no mass we can

measure

• Electron(-) in electron

• cloud

• Valence Electrons– Electrons found in the outer most regions of

the atoms electron cloud– Involved in Bonding

Location of Subatomic Particles?

Location of Subatomic Particles Electron

• Nucleus– Proton(+) in nucleus– Neutron(O) in nucleus– Overall charge is (+)

Nucleus

Location of Subatomic Particles

• Electron(-) in electron

It surround the nucleus

It has a (-) charge

Location of Subatomic Particles

• Our model is not accurate (correct)– The electron cloud has many

different shapes- The space between the

nucleus and electron cloud

is much greater

Atoms and the Periodic Table

• SE: Interpret information on the periodic table to understand that physical properties are used to group element.

– Verb: Interpret– Noun : information on the periodic table

Atoms and the Periodic Table

• Atomic Number 12

• Symbol Mg

• Mass number 24.305

Atomic Number on the Periodic Table

Atomic Number

• Atomic number = Protons(+)

• If this number changes – New Element!

Electrons(-)

Protons = Electrons (in a neutral atom)

Atomic Number 12

Symbol Mg

Mass number 24.305

Neutrons (0)

• Neutrons = Mass number – Atomic number

• Must look at both number

Atomic Number 13

Symbol Al

Mass number 26.982

Atom Bonding

• Atoms want their outer energy level to be full– Energy Level 1 =2 electrons– Energy Level 2 = 8 electrons– Energy Level 3 = 8 electrons

How do they accomplish this?

Atom Bonding

• To fill their outer energy level they :– Share– Give up all the electrons in the outer energy

level– Steal electrons to complete their outer energy

Atom Bonding

• If they give up (lose) electrons they are no longer neutral atoms.

They are Positive Ions

Example:

Ex: Lithium Loses it’s valence electron and becomes a + 1 ion

- +3 -2 = +1

3P+ 4N

Atom Bonding

• If they steal electron they are no longer neutral atom.

• They become a negative ion

Atom Bonding

• Fluorine only needs one more electron to fill it’s outer energy level so it steals one and becomes negative ion +9

-1 ion

Atom Bonding

• When atoms become + or – ions, they are then attracted to oppositely charged ions and create molecule or compounds

Atoms 8.8a Describe the structure and parts of an atoms. Verb: describe Noun: structure and parts...

Documents

CHEM3023 “Spins, Atoms and Molecules” 1 Introduction Chemical reactions involve the making or breaking of chemical bonds between atoms. Only quantum theory is able to describe

Molecular Orbital Theory The goal of molecular orbital theory is to describe molecules in a similar way to how we describe atoms, that is, in terms of

qclscience.weebly.com€¦ · Web view2017-05-24 · Structure and Bonding Revision Questions. ... Each word may be used once, ... Describe how magnesium atoms and chlorine atoms

8.8A describe components of the universe, including stars

Objectives Be able to describe how carbon atoms bond covalently to form organic compounds Be able to describe how carbon atoms bond covalently to form

Bonding in Metals. Objectives Be able to model the valence electrons of metal atoms Describe the arrangement of atoms in a metal Explain the importance

Life Cycle of a Star 8.8A describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Herztsprung-Russell diagram

Atomic Structure. Learning Goals Identify and describe particles which comprise atoms. Compare atoms and contrast forces inside. Determine subatomic

Describe the mass, charge, and location of protons, neutrons, and electrons in atoms. S-105

C1 1.1 Atoms, Elements and Compoundsbioteacher.weebly.com/uploads/9/9/1/9/9919780/wk_5...Title: Atoms, Elements and Compounds •Objectives: describe atom structure, the periodic table

Atoms and Molecules - Micron Technology...Atoms and Molecules Preparation Objectives This lesson will enable students to: Describe how atoms are the building blocks of matter Explain

Atoms & Starlight (Chapter 6). Student Learning Objectives Describe properties and behavior of atoms Analyze types of spectra Explain the affects of light

Objectives I can describe the particles within atoms and diagram the structure of atoms. What are elements? I can use the periodic table to relate the

The Nature of Matter Physical Sciences Benchmarks A. Describe that matter is made of minute particles called atoms and that atoms are comprised of even

Chapter 4 Atomic Structure. By the end of the chapter you WILL be able to… Describe Democritus’s ideas about atoms Describe Democritus’s ideas about atoms

Chapter 12.1 Learning Goals Apply an understanding of electric charge to describe the structure of atoms. Identify and describe particles which comprise

Science OGT Fun Club 2010. Physical Science Describe that matter is made of minute particles called atoms and atoms are comprised of even smaller components

Atoms and Molecules · Essential Question How do scientists know what atoms look like? Today’s Learning Goals 1. Identify and describe the three subatomic particles, their charges,

Investigating Atoms and Atomic Theory · Investigating Atoms and Atomic Theory Students should be able to: Describe the particle theory of matter.PS.2a Use the Bohr model to differentiate

Hybrid orbitals... Used to describe the shapes of molecules. Used to describe properties of various types of bonds holding atoms together. Used to discuss