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

Slides:

Advertisements

Similar presentations

Advertisements

Chapter 6-2 part 1 The Atom.

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

Atomic Structure Nucleus – contains protons and neutrons

Structure of an Atom.

Structure of an Atom. What Is an Atom? An atom is often referred to as the building block of matter. Atoms have a nucleus surrounded by an electron cloud.

Atomic Mass & Number Isotopes The Periodic Table.

The Periodic Table. Define the following terms. 1. proton 2. neutron 3. electron 4. nucleus.

Protons, neutrons and electrons How to find the number of each in any given atom.

Copyright © by Holt, Rinehart and Winston. All rights reserved. Section 3 How Atoms Differ.

Chapter 4 - Part 2 Protons, neutrons and electrons are all subatomic particles. Protons are positive (+) charged particles found in the nucleus of an atom.

Atomic Structure.

Objectives:  1. Name and describe the three subatomic particles in an atom.  2. Determine the number of protons, neutrons, and electrons in an atom or.

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 Structure. Inside an Atom Over time, scientists have come up with many theories about the inside of atoms. Today we believe that an atom has a.

 The atoms of all elements are made up of a central nucleus with orbiting electrons. ◦ A nucleus is made up of positively charged PROTONS and neutral.

Mass Number Atomic Number equals the # of... NUCLEUS ELECTRONS PROTONS NEUTRONS NEGATIVE CHARGE POSITIVE CHARGE NEUTRAL CHARGE ATOM.

THE STRUCTURE OF ATOMS Pg. 43. Daily science- pg. 40  Who discovered the neutron? Electron? Nucleus?  What did Democritus theorize?  Name two differences.

Warmup: Concept: PS-2.1 Compare the subatomic particles.

Structure of an Atom.

 Intro to the Atomic Theory Elements, Atoms, and Subatomic Particles Bill Nye - Atoms.

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

The Atom and Its Parts Physical Science.  The three subatomic particles are:  Proton – Positive charge  Electron – Negative charge  Neutron – No charge.

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.

Head a paper for class notes Record all drawings and data charts in notes Record any writing that is in yellow You do not need to record all of the examples.

Proton, Neutron, Electron Counting Protons (p + ) are positively charged and located in the nucleus The number of protons in each atom can be found on.

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.

Structure of Atoms. Originally scientists thought that atoms could not be split into anything smaller. We now know that atoms are made up of smaller particles.

The building blocks of matter! ©2011 University of Illinois Board of Trustees

- the smallest unit of an element

Atomic Structure.

Periodic Table of Elements

Discuss the following with your table What is an element? What is the difference between and element and an atom? What is the difference between a compound.

Structure of an Atom. The Three subatomic particles of an atom: Proton Neutron Electron.

LEARNING ABOUT ATOMS BY READING THE PERIODIC TABLE.

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.

Subatomic Particle SymbolChargeMass (amu) Where is it found? Atomic mass unit (AMU)- the SI unit used to express the mass of the particles in an atom.

Atomic Structure Atoms are not indivisible, but are made up of sub-atomic particles.

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.

Parts of an Atom. First off, what is an atom? Atoms are the smallest parts to which an element can be divided yet still be that element. Atoms are the.

Parts of the Atom: Properties  Protons: –Positive charge –Located in nucleus –Mass = 1 amu (Atomic Mass Unit)  Neutrons –No charge (neutral) –Inside.

Notes on Isotopes Remember Protons are (+) and Electrons are (-). Neutrons were the last subatomic particles to be discovered because they have no electrical.

Atomic Structure What is an Atom?. INB Page 123 Add the Periodic Table of Elements!!

1 What is an atomic number and an atomic mass?. 2 Elements and Atomic Number The atoms of different elements have different numbers of protons. The atoms.

Periodic Table of Elements and Atom Notes 6.4 a,b,c Atoms are made up of protons, neutrons and electrons. The nucleus contains the protons and neutrons.

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

Parts of the Atom Notes Contains: Contains: __________ and __________ ______________ with relative mass _________ _________ ______________ and relative.

Chapter 4 Lecture Basic Chemistry Fourth Edition Chapter 4 Atoms and Elements 4.4 Atomic Number and Mass Number Learning Goal Given the atomic number and.

Atomic Structure Notes You will need your periodic table or your textbook p. 28.

 Protons are positive!!!  Protons have a +1 charge  Protons have a mass of 1 amu  Neutrons are neutral!!!  Neutrons have a neutral or no charge 

Chapter 4 Atoms and Elements

ATOMS NOTES Adapted from

INTRODUCTION TO ATOMS CHAPTER 3 section 1.

ATOMS NOTES Adapted from

Isotopes QUICK NOTES Carbon-14

Title: Atomic Properties

The Atom 3 major parts of the atom are: Protons Neutron Electrons

1. What are these two atoms of carbon called?

e- p+ n0 0 amu 1 amu 1 amu Electron proton Neutron

1. What are these two atoms of carbon called?

Example Example 1: The atom of an element has a mass number of 214 and an atomic number of 82. a) How many protons and neutrons does it have? The number.

Presentation transcript:

ATOM NEUTRONS Charge: none Mass: 1 amu Location: nucleus ELECTRONS Charge: negative Mass: zero Location: electron cloud PROTONS Charge: positive Mass: 1 amu Location: nucleus NUCLEUS is the small, positively charged Center of the atom. It has most of the atom’s mass.

The mass of an atom is so small, scientist made a new SI unit, atomic mass unit (amu). In an atom, the numbers of protons and electrons are the same, so their charges cancel out. An atom has no overall electric charge, it is neutral. How can you tell which elements different atoms represent? The key is the number of protons. The number of protons in the nucleus of an atom is the atomic number of that atom.

The mass number is the total number of protons and neutrons in an atom. Subtract the atomic number from the atomic mass to find out the number of neutrons. Locate Fluorine on the periodic table. Mass: Atomic Number Protons: Electrons: Neutrons: Mass Number (19) -Atomic Number (9) Neutrons (10)

Look at the Periodic Table, locate the following elements using their atomic number: carbon, potassium, gold. How many protons does Carbon have? How many electrons does Potassium have? How many neutrons does Gold have?