Atomic Structure Nucleons Atomic Number

Slides:

Advertisements

Similar presentations

Chapter 5 Sections 2 and 3 Structure of an atom nucleus- center of an atom -discovered by Ernest Rutherford in 1911 proton (p+) -positively charged subatomic.

Advertisements

Atomic Structure Nucleus – contains protons and neutrons

Subatomic Particles and Isotopes. Subatomic Particles Protons- Positively Charged Protons- Positively Charged Located in the nucleus Located in the nucleus.

Subatomic Particles  Protons and electrons are the only particles that have a charge.  Protons and neutrons have essentially the same mass.  The mass.

Atomic Structure I. Subatomic Particles.

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

 Atomic Number- the number of protons in the nucleus of an atom of that element  Ex: Hydrogen atoms have only one proton in the nucleus, so the atomic.

Section 4.3 How atoms differ. Atomic Number Represents three things in a neutral atom: 1. What element it is 2. The number of protons in each atom 3.

I. Subatomic Particles (p ). ParticleSymbolLocationChargeRelative Mass (amu) Actual Mass (g) electron proton neutron e-e- p+p+ n0n0 Electron.

Unit 3: Atomic Structure. A. Subatomic Particles Most of the atom’s mass (Mass Number) NUCLEUS ELECTRON CLOUD PROTONS NEUTRONS ELECTRONS POSITIVE CHARGE.

How Atoms Differ. a. Properties of Subatomic Particles ParticleSymbolLocationRelative Charge Relative mass Actual mass (g) Electron Proton Neutron.

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.

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.

Protons, Neutrons, and Electrons

Atomic Structure. Subatomic Particles In the nucleus: Protons Mass  1 amu Charge = +1 Neutrons Mass  1 amu Charge = 0 In the electron cloud: Electrons.

Isotopes and abundance. The relative atomic mass scale is now based on an isotope of carbon, carbon-12, which is given the value of amu.

1 The Atom Atomic Number and Mass Number Isotopes.

Section 2 Protons, neutrons, and electrons- how atoms differ

How Atoms Differ.

The Modern View of Atomic Structure

Atomic Structure and Isotopes

Atomic Structure I. Subatomic Particles C. Johannesson.

Atomic Structure Subatomic Particles C. Johannesson.

Subatomic Particles Masses of Atoms Mass Number Isotopes Ions

ELEMENTS, IONS AND ISOTOPES

STRUCTURE OF THE ATOM.

ATOMIC STRUCTURE THE NUCLEUS: 1) THE PROTON:

CHEMISTRY REVIEW For Atomic Structure Test

Basic Atomic Structure

Subatomic Particles.

Structure of the Nucleus – Outcomes

Atomic Particles Particle Charge Mass # Location Electron -1

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

Atoms Atomic Structure.

# of Subatomic particles Atomic Mass - calculate

INTRODUCTION TO ATOMS CHAPTER 3 section 1.

Atomic Structure Chemistry.

Section 1 Structure of the atom and cells on the periodic table

Foldables: Atoms Terms.

Warmup Draw an atom.

Subatomic Particles.

Elements, Isotopes and More

The Structure of an Atom

How Atoms Differ Chp 4.

Ch. 3 - Atomic Structure II. Masses of Atoms (p.75-80) Mass Number

Distinguishing Among Atoms

Chemistry Unit: Chapter 3

The Structure of an Atom

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

Atoms and Subatomic Particles

ATOMIC STRUCTURE THE NUCLEUS: 1) THE PROTON:

The Atom Unit 2 Topic 1.

Atomic Structure Protons- positively charged, found in nucleus

Atomic Number, Mass Number, Atomic Mass and Isotopes

Q2 Name 3 subatomic particles. What particle has no charge?

Distinguish Between Atoms

Ch. 4 - Atomic Structure II. Masses of Atoms Mass Number Isotopes

Atomic Structure Nucleus Protons Neutrons Electrons.

Introduction to Atomic Structure

Chapter 6-2 part 1 The Atom.

Subatomic Particles.

Atomic Particles Particle Charge Mass (kg) Location Electron -1

Counting Subatomic Particles

Presentation transcript:

Atomic Structure Nucleons Atomic Number Particles in the nucleus of atom Proton Neutron Atomic Number Number of protons in the atom of an element Neutral atom # of protons (+) = # of electrons (-) Episode 302

Isotope Atoms of an element the have a different number of neutrons (different mass) Isotopes of Hydrogen Hydrogen – 1 1 proton and 0 neutrons Hydrogen – 2 1 proton and 1 neutron Hydrogen – 3 1 proton and 2 neutrons Mass Number Total number in protons and neutrons in an atom http://www.youtube.com/watch?v=zEX2aGpIDBY&feature=related Episode 302

Ne C 14 20 6 10 Examples Atomic Mass Carbon – 14 Neon – 20 Weighted average of the masses of all the element’s isotopes 14 20 Ne C 6 10 Particle Charge Mass Location Proton Neutron Electron +1 1 amu nucleus neutral 1 amu nucleus -1 0 amu e- cloud Episode 302

Subatomic Particles 3 protons 3 electrons ? neutrons # of protons = atomic number # of electrons = atomic number # of neutrons = mass number – atomic number 3 protons Round the average atomic mass b/c its mass is closest to the most abundant isotope. 3 electrons ? neutrons 7 – 3 = 4 neutrons 26 protons 26 electrons 56 – 26 = 30 neutrons Episode 302

Carbon – 14 Oxygen – 17 Find atomic number Mass number – atomic number 6 protons 6 electrons Mass number – atomic number 14 – 6 = 8 neutrons Oxygen – 17 8 protons 8 electrons 17 – 8 = 9 neutrons Episode 302

N 15 7 7 protons 7 electrons 15 – 7 = 8 neutrons 2 protons 2 electrons Episode 302