Atomic Symbols protons + neutrons = mass # atomic # = protons.

Slides:

Advertisements

Similar presentations

4.3: HOW ATOMS DIFFER ATOMIC NUMBER

Advertisements

Atomic Mass & Number Isotopes The Periodic Table.

Isotopes. Isotopes are atoms that have the same number of protons but different numbers of neutrons Most elements in the first two rows of the periodic.

My Element Foldable for Lithium (as an example). Element Symbol Li 3 7.

Determining the NUMBER of Protons Electrons and Neutrons in Atoms, Ions, and Isotopes.

Atomic Mass. Atomic Number (A) Number of protons in the nucleus Atoms of the same element all have the same number of protons In a neutral atom, the total.

Mass Spectrometer. Atomic Number Atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element. Element# of protonsAtomic.

Atomic Structure.  Atomic number – the number of protons in the nucleus of an atom ( ID of element )  Mass number– sum of protons and neutrons in an.

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.

Atomic Structure The Periodic Table, Isotopes, and Average Atomic Mass.

Atoms / Elements Different number of protons Protons found in nucleus # of protons = atomic number Since atom is electrically neutral: #protons = # electrons.

Chapter 3 review With chalkboards. What is this called? z X A.

Mass # atomic # protons + neutrons = protons = Atomic Symbols.

Isotopes. Let’s Review ProtonsNeutronsElectrons Charge +1 0 Mass 1 amu 0 Location nucleus Electron cloud.

Proton A positively charged subatomic particle (found in the nucleus). A subatomic particle with no charge (found inside the nucleus). Neutron.

Physical Science 513 Unit – Atoms and Elements.

Atomic notation X A Z X = Symbol (C, Au) A = Atomic Mass Number = #nucleons (Protons + Neutrons) Z = Atomic Number = #protons C 12 6 Carbon A = 12, Z =

2. What are isotopes? Use two particles from the table above to illustrate your answer. (3 marks) 17 O & 18 O (1) Same Atomic mass / number of protons.

4.3 Atomic #, Mass #, Atomic Mass & Isotopes. Atomic Number  What are the 3 subatomic particles?  Which of the subatomic particles identifies an element?

Chemistry: Inside the Atom Chapter 3 Part 2. How Atoms Differ Atoms differ in the number of protons they have. – Oxygen has 8 Protons, Fluorine 9 Protons,

Masses of Atoms.

Chapter 3: Chemical Foundations: Elements, Atoms, and Ions

Warm-up: Complete the following table

Isotopes vs. Ions.

Atomic Structure Concepts.

4.2 -Atomic Structure Theory

Atomic Structure Atoms are made of 3 subatomic particles:

ELEMENTS, IONS AND ISOTOPES

1. The concept of positive charge and a small,

Atoms / Elements •Different number of protons

Atomic Structure.

A B 21085At Fe Mo 5827Co 3216S Pb4+ Symbol

Unit 2: Atomic Theory & Structure

Unit 2: Atomic Theory & Structure

Basic Atomic Structure

1. The concept of positive charge and a small,

Atomic Structure Walk Around

Openers 10/29-11/2 Physical Science.

Intro to Atomic Structure BR 10/3-4

How do structures of atoms Differ?

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

H H H Isotopes element: same or different mass:

H H H Isotopes element: same or different mass:

Isotopes QUICK NOTES Carbon-14

Title: Atomic Properties

Ch. 3 Atoms 3.3 Counting Atoms.

STRUCTURE OF ATOM AND NUCLEUS

Atomic Symbols protons + neutrons = mass # atomic # = protons.

Atomic Symbols = = mass # atomic # protons + neutrons protons

1. What are these two atoms of carbon called?

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

Atomic Symbols protons + neutrons = mass # atomic # = protons.

Structure of the Atom Nucleus- Protons Neutrons Electrons-

Atomic Number, Mass Number, Atomic Mass and Isotopes

Tuesday October 21 How many protons does Sulfur (S) have?

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

1. What are these two atoms of carbon called?

Find the average of the following numbers…

Atomic number Atomic mass.

ARE ALL ATOMS OF THE SAME ELEMENT IDENTICAL?

Structure of an Atom What is an ATOM??? Pg

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.

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

Protons, Neutrons and Electrons

Presentation transcript:

Atomic Symbols protons + neutrons = mass # atomic # = protons

Elements are identified by atomic number (protons). Neutrons Electrons 19 20 S 17 39Ca 14 6 39 K 19 19 33 16 16 16 16 20 20 19 20 20 6 6 8 C 6

H H H Isotopes 1 2 1 3 1 element: same or different mass: _________: same # of protons & electrons, BUT different # of neutrons 1 H 2 1 H 3 1 H protium deuterium tritium

Quick (but challenging) Quiz! 1. The number of protons in the nucleus is… the mass number. the atomic number. the same as the number of neutrons. the total of protons and neutrons.

Quick (but challenging) Quiz. 2. The mass number is… the number of protons. the number of neutrons. the total of protons and electrons. the total of protons and neutrons.

Quick (but challenging) Quiz. 3. Isotopes of an element have… the same mass number. different atomic numbers. the same number of protons but different mass numbers. the same number of protons but different numbers of neutrons.

Quick (but challenging) Quiz. 4. How many neutrons are in an atom of potassium–40 ? (40K) (Atomic Number = 19) 19 neutrons 21 neutrons 40 neutrons 59 neutrons