The Elements – Part 2 Getting Specific.

Slides:

Advertisements

Similar presentations

Isotope Notation Isotope Notation uses a symbol to convey information about an isotope of a particular element. 23 Na 11.

Advertisements

4.3: HOW ATOMS DIFFER ATOMIC NUMBER

How many protons, electrons, and neutrons are in an atom?

Unit 3: Atomic Structure Atomic Number, Mass Number, and Isotopes.

Atomic Structure.

How to draw a (Bohr) model of an atom

Using the Bohr Model to Build an Atom

 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.

Homework from page 104.

HOW MANY PROTONS, ELECTRONS, AND NEUTRONS ARE IN AN ATOM?

11 12 Sodium Atomic number = Mass Number = p+p+ n protons & neutrons 12 neutrons In a neutral sodium atom the number of protons (11)

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

Element Box page 7 Si Silicon 14 Atomic number Chemical Symbol

Reading the Periodic Table. What does Atomic Mass tell us?

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

LEARNING ABOUT ATOMS BY READING THE PERIODIC TABLE.

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 Worksheet

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.

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

There are three states of matter: gas, solid and liquid All matter is made of atoms An element is made up of one type of atom A molecule is a combination.

Isotopes Chapter 4, Section 3 Pg Review of Atoms Atoms are made of protons, neutrons, and electrons. – Protons are +, electrons are –, and.

Structure of the atom. What makes up the atom? Nucleus –Protons (positively charged) –Neutrons (no overall charge) Orbitals –Electrons (negatively charged)

 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 

Atomic Structure atomic number atomic mass elemental symbol.

The Periodic Table.

The Structure of the Atom

DRAWING ATOMIC MODELS.

Calculating Average Mass

Atomic Structure Concepts.

-Atomic Number N -Element Symbol -Atomic Mass Number

Atomic Structure Atoms are made of 3 subatomic particles:

Chapter 4 Atoms and Elements

Learning objective 2: I can understand the patterns found in the number of protons, neutrons, and electrons in an atom.

Do these steps on the front of the worksheet

8th Grade Physical Science Mrs. Fletcher

Atomic Structure and the Periodic Table

APE MAN Zamarripa.

Move and label the protons, neutrons, and electrons to build an atom of each of the following elements.

How to Read the PERIODIC TABLE

Atomic Structure.

Ch. 4/5 Notes Day 3 1/28/16.

Calculating PEN (protons, electrons, neutrons) for Atoms and Ions

Name That Atom! Use your knowledge of atoms to find the name of each of the following atoms. Use a Periodic Table!

Section 3-3 Counting Atoms.

Isotopes QUICK NOTES Carbon-14

Structure of an Atom.

Title: Atomic Properties

How many protons, electrons, and neutrons are in an atom?

Atoms and the Periodic Table

Atomic Structure.

Elements and their atoms

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

Atoms and Subatomic Particles

ATOMS AND ATOMIC STRUCTURE Atom Nucleus Proton Neutron Electron

How We Know What We Can’t See Looks Like Day 4 Average Atomic Mass

How many protons, electrons, and neutrons are in an atom?

ATOMS AND ATOMIC STRUCTURE

Atomic Math Calculations

Distinguish Between Atoms

How We Know What We Can’t See Looks Like Day 4 Average Atomic Mass

Atomic number Atomic mass.

How many protons, electrons, and neutrons are in an atom?

Week 1 – Atomic Structure Elements, Mixtures and Compounds

Starters Week 4-6 Monday The Periodic Table Hydrogen

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.

Protons, Neutrons and Electrons

Presentation transcript:

The Elements – Part 2 Getting Specific

Now that we know that all the elements are listed on The Periodic Table of the Elements just what information is given to us in those little boxes? Ti Titanium 47.867 22 14 Si Silicon 28.0855

Ti 22 Atomic number Symbol Element name Atomic mass or Atomic weight Titanium 47.867 22 Element name Atomic mass or Atomic weight

Ti Atomic number 22 Tells you two things: How many protons (+) are in one atom. How many electrons (-) are in one atom. For an atom to be electrically neutral there must be the same number of + as there are - Ti Titanium 47.867 22 “PE”

Ti Atomic mass (weight) 22 Tells you one thing: Titanium 47.867 22 Tells you one thing: The weight of the nucleus. Remember that the nucleus only has protons and neutrons. If this nucleus has a mass of 47.867 we know that it is a combination of both protons and neutrons.

Ti Atomic mass (weight) 22 Titanium 47.867 22 If there are 22 protons in that nucleus then all we have to do is subtract that from the mass to get the neutrons. 48 (rounded weight of nucleus) 22 (number of protons) ____________ 26 neutrons

In Summary To find protons and electrons just look at the atomic number (remember “PE”). Ti Titanium 47.867 22 To find neutrons subtract the atomic number from the atomic mass.

Time for a little practice – Using your periodic table calculate the number of protons, electrons, and neutrons for the following elements: helium sodium iron zirconium Protons: 2 Electrons: 2 Neutrons: 2 Protons: 11 Electrons: 11 Neutrons: 12 Protons: 26 Electrons: 26 Neutrons: 30 Protons: 40 Electrons: 40 Neutrons: 51

Let’s do it in reverse – What element is pictured here? Nitrogen