III. Masses of Atoms (p ) Atomic Mass Mass Number Isotopes

Slides:

Advertisements

Similar presentations

I. Subatomic Particles (p )

Advertisements

4.3: HOW ATOMS DIFFER ATOMIC NUMBER

Atomic Structure Nucleus – contains protons and neutrons

Atomic Mass & Number Isotopes The Periodic Table.

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

Atomic Structure I. Subatomic Particles.

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

Isotopes Atoms of the same element that different mass numbers

Chapter 18 Lesson 2 Masses of Atoms

Atoms & Isotopes NOTES. Reading the Periodic Table AEMAEM Atomic Number Average Atomic Mass Element Symbol.

How atoms differ. Mass Number The sum of the protons and neutrons BUT…Why is it not an even number??

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

C. Johannesson Atomic Structure. Structure of the Atom  Protons- Positively charged particles in the nucleus  Neutrons-neutrally charged particles in.

Atomic Mass. Masses in amu Only carbon-12 has an atomic mass exactly equal to its mass # One atomic mass unit (amu) is defined as 1/12 the mass of a carbon-12.

Isotopic Abundance SCH 3U. Atomic Mass The mass of an atom (protons, neutrons, electrons) Relative Atomic Mass: An element’s atomic mass relative to the.

Atomic Number & Atomic Mass

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.

LEARNING ABOUT ATOMS BY READING THE PERIODIC TABLE.

1 The Atom Atomic Number and Mass Number Isotopes.

Same Element Different Atom- Isotopes All atoms of a particular element are not exactly alike. Some elements have atoms with different masses (isotopes)

Lesson 24: Isotopes An element can be identified by the # of protons it has # of neutrons can vary Neutrons add to the mass of the atom, but do not change.

II. Masses of Atoms Mass Number

Calculating Average Mass

Atomic Structure Subatomic Particles C. Johannesson.

Subatomic Particles Masses of Atoms Mass Number Isotopes Ions

The atom and Isotopes.

Isotopes and Calculating Atomic Mass

Ch Atomic Structure II. Masses of Atoms (p.30-31) Mass Number

Atomic Structure.

Intro to Atomic Structure BR 10/3-4

How do structures of atoms Differ?

Atomic Structure.

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

Isotopes - isotope: atoms of the same element that have different numbers of neutrons - Carbon, as found in nature, is a mixture of isotopes, including.

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

Ch Atomic Structure Structure of the Atom (p , )

Isotopes QUICK NOTES Carbon-14

Isotope -an atom with a different number of NEUTRONS than protons.

I. Atomic Structure II. Masses of Atoms Mass Number Isotopes Ion

I. Atomic Structure II. Masses of Atoms Mass Number Ion Isotopes

Ch. 3 Atoms 3.3 Counting Atoms.

III. Masses of Atoms (p ) Atomic Mass Mass Number Isotopes

Isotopes Atoms with SAME number of PROTONS (atomic number) but DIFFERENT numbers of neutrons (i.e. mass number) 6 protons 6 neutrons 6 protons 7 neutrons.

III. Masses of Atoms (p ) Atomic Mass Mass Number Isotopes

Notes: Atomic Structure

Atomic Structure Chemistry.

I. Atomic Structure II. Masses of Atoms Mass Number Isotopes Ion

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

Elements and their atoms

Chemistry Unit: Chapter 3

A. Structure of the Atom Chemical Symbols Subatomic Particles

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

Atomic Masses 16.2.

Periodic table data and Isotopes

Atomic Number, Mass Number, Atomic Mass and Isotopes

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

III. Masses of Atoms Atomic Mass Mass Number Isotopes

I. Structure of the Atom Chemical Symbols Subatomic Particles

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

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

Introduction to Atomic Structure

ARE ALL ATOMS OF THE SAME ELEMENT IDENTICAL?

The periodic table and the atom part 2

Chapter 18 Lesson 2 Masses of Atoms

Presentation transcript:

III. Masses of Atoms (p.278-281) Atomic Mass Mass Number Isotopes Ch. 10 - Atomic Structure III. Masses of Atoms (p.278-281) Atomic Mass Mass Number Isotopes

A. Atomic Mass atomic mass unit (u) 1 u = 1/12 the mass of a 12C atom 1 proton = 1 u 1 neutron = 1 u 1 u = 1.67  10-24 g © Addison-Wesley Publishing Company, Inc.

B. Mass Number Sum of the protons and neutrons in the nucleus of an atom. © Addison-Wesley Publishing Company, Inc. Always a whole number. # of neutrons = mass # - atomic #

C. Isotopes Mass # Atomic # Atoms of the same element with different numbers of neutrons. Isotope symbol: Mass # Atomic # “Carbon-12”

C. Isotopes © Addison-Wesley Publishing Company, Inc.

C. Isotopes Average Atomic Mass reported on Periodic Table weighted average of all isotopes Avg. Atomic Mass

C. Isotopes EX: About 8 out of 10 chlorine atoms are chlorine-35. Two out of 10 are chlorine-37. Avg. Atomic Mass 35.4 u