The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an...

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The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive charge Determines the atomic number Number of Protons determines the number of Electrons Neutron No charge Atomic weight - # of Protons = # of Neutrons Atomic Structure

Transcript of The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an...

Page 1: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

The AtomSmallest unit of an element that can exist aloneGreek for “uncuttable”

Anatomy of an Atom: Electrons, Protons, NeutronsThe Nucleus

ProtonPositive chargeDetermines the atomic numberNumber of Protons determines the number of Electrons

NeutronNo chargeAtomic weight - # of Protons = # of Neutrons

Atomic Structure

Page 2: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

ElectronsNegative chargeAtomic number tells you the number of

electronsResides in the “shells”, orbits, or levels

Atomic Structure

Page 3: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Organized representation of the chemical elements Dimitri Mendeleev

February 17, 1869 63 elements

113 elements Row (Period)

Left to right w/ increasing atomic number Number from 1 to 7

Columns (Family) Number of electrons in the outer orbit

Groups A Group (Representative elements) B Group (Transition elements) Group VIIIA

Noble or inert gases Metals, Semiconductors, & Nonmetals

More on this later – stay tuned

The Periodic Table

Page 4: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.
Page 5: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

The ElementSymbolAtomic number

Total number of electronsTotal number of protons

Electrical chargeElectrons – minusProtons – plusNeutrons – no charge

Atomic weight (Nucleus)Protons + Neutrons = atomic weight

The Periodic Table

Page 6: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Electron ConfigurationEnergy Levels (Shells)

Level I – 2Level II – 8Level III – 8 (first 20 elements) (18)Level IV – 32

The Periodic Table

Page 7: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Putting it all together . . .

Sodium NaAtomic # - 11

Level I (Shell) - 2Level II - 8Level III – 1

The Periodic Table

Page 8: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Try this one . . .

Chlorine Cl

The Periodic Table

Page 9: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Chlorine ClAtomic # 17

Level I – 2Level II – 8Level III – 7

The Periodic Table

Page 10: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

What does the Periodic Table Tell Us?Element symbol & nameAtomic Number of the element

Number of electronsNumber of protons

Number of neutronsNumber of electrons in the outer

shellAtomic weight

The Periodic Table

Page 11: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Metals, Nonmetals, & Semiconductors80% of the elements are metals

IonAn element with an unbalanced electron

charge – either plus or minusPositive ions – lose electrons

MetalsNegative ions – gain electrons

Non-metalsRemember – the number of protons determines the

charge

The Periodic Table

Page 12: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

IonsWhen the number of protons is

greater than the number electrons it is a positive (+) charged ion.

When the number of electrons is greater than the number of protons it is a negative (-) charged ion.

The Periodic Table

Page 13: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

MetalsElements with 1 – 3 electrons to

losePositive ion

Non-metalsElements with 1 -3 electrons to

gainNegative ion

The Periodic Table

Page 14: The Atom Smallest unit of an element that can exist alone Greek for “uncuttable” Anatomy of an Atom: Electrons, Protons, Neutrons The Nucleus Proton Positive.

Check this out . . .

http://www.vanderkrogt.net/elements

The Periodic Table

http://www.vanderkrogt.net/elements
http://www.vanderkrogt.net/elements

Protons Identify an Element/atom (2 protons = Helium) Protons + Neutrons = Atomic Mass/Weight ( 2 Protons + 2 Neutrons = 4 AMU ) Chemical Properties

Protons Identify an Element/atom (2 protons = Helium) Protons + Neutrons = Atomic Mass/Weight ( 2 Protons + 2 Neutrons = 4 AMU ) Chemical Properties

The Strong Force Why do protons & protons, protons & neutrons, and neutrons & neutrons all bind together in the nucleus of an atom? Electromagnetic?

The Strong Force Why do protons & protons, protons & neutrons, and neutrons & neutrons all bind together in the nucleus of an atom? Electromagnetic?

Build an Atom PhET Simulation Answer ... - … an Atom PhET... · What is the name of the following atoms? a. An atom with 3 protons and 4 neutrons: b. An atom with 2 protons and

Build an Atom PhET Simulation Answer ... - … an Atom PhET... · What is the name of the following atoms? a. An atom with 3 protons and 4 neutrons: b. An atom with 2 protons and

{ Distinguishing Among Atoms The Atom. Atoms are composed of protons, neutrons, and electrons. Protons and neutrons make up the nucleus. Electrons.

{ Distinguishing Among Atoms The Atom. Atoms are composed of protons, neutrons, and electrons. Protons and neutrons make up the nucleus. Electrons.

 · Web viewQ1.An atom of aluminium has the symbol (a) Give the number of protons, neutrons and electrons in this atom of aluminium. Number of protons

 · Web viewQ1.An atom of aluminium has the symbol (a) Give the number of protons, neutrons and electrons in this atom of aluminium. Number of protons

Chemistry. EVERY CHLORINE ATOM HAS 17 PROTONS, WITHOUT EXCEPTION, –HOWEVER, NOT EVERY CHLORINE ATOM HAS 18 NEUTRONS. –ATOMS WITH THE SAME NUMBER OF PROTONS.

Chemistry. EVERY CHLORINE ATOM HAS 17 PROTONS, WITHOUT EXCEPTION, –HOWEVER, NOT EVERY CHLORINE ATOM HAS 18 NEUTRONS. –ATOMS WITH THE SAME NUMBER OF PROTONS.

Protons and neutrons (nucleons) - MSJChem...Protons and neutrons (nucleons) are located in the nucleus of the atom. Electrons are located in energy levels surrounding the nucleus.

Protons and neutrons (nucleons) - MSJChem...Protons and neutrons (nucleons) are located in the nucleus of the atom. Electrons are located in energy levels surrounding the nucleus.

ATOMIC STRUCTURE SUBATOMIC PARTICLES. WHATS IN AN ATOM? THREE MAIN PARTICLES THREE MAIN PARTICLES PROTONS PROTONS NEUTRONS NEUTRONS ELECTRONS ELECTRONS.

ATOMIC STRUCTURE SUBATOMIC PARTICLES. WHATS IN AN ATOM? THREE MAIN PARTICLES THREE MAIN PARTICLES PROTONS PROTONS NEUTRONS NEUTRONS ELECTRONS ELECTRONS.

An atom has 19 protons and 20 neutrons - WordPress.com · 1. An atom has 19 protons and 20 neutrons. The number of electrons in this atom is A. 1 B. 19 C. 20 D. 39 Use the following

An atom has 19 protons and 20 neutrons - WordPress.com · 1. An atom has 19 protons and 20 neutrons. The number of electrons in this atom is A. 1 B. 19 C. 20 D. 39 Use the following

1 Levels of Organization Subatomic Particles – electrons, protons, neutrons Atom – hydrogen atom, lithium atom Molecule – water molecule, glucose molecule.

1 Levels of Organization Subatomic Particles – electrons, protons, neutrons Atom – hydrogen atom, lithium atom Molecule – water molecule, glucose molecule.

Chapter 6 Chemistry in Biology 6 Chemistry in Biology Neutrons and protons are located at the center of the atom. Protons are positively charged particles. Neutrons are particles that

Chapter 6 Chemistry in Biology 6 Chemistry in Biology Neutrons and protons are located at the center of the atom. Protons are positively charged particles. Neutrons are particles that

DETERMINE THE NUMBER OF PROTONS, NEUTRONS AND ELECTRONS IN AN ATOM.

DETERMINE THE NUMBER OF PROTONS, NEUTRONS AND ELECTRONS IN AN ATOM.

Pocket physics (nucleon) number A = number of protons plus number of neutrons. The strong nuclear force binds neutrons to neutrons, protons to protons and neutrons to protons. Number

Pocket physics (nucleon) number A = number of protons plus number of neutrons. The strong nuclear force binds neutrons to neutrons, protons to protons and neutrons to protons. Number

Radiation What makes something radioactive? The nucleus of an atom contains protons and neutrons The nucleus of an atom contains protons and neutrons.

Radiation What makes something radioactive? The nucleus of an atom contains protons and neutrons The nucleus of an atom contains protons and neutrons.

Radioactivity Nucleus – center of the atom containing protons and neutrons –How are the protons and neutrons held together? Strong Force - an attractive.

Radioactivity Nucleus – center of the atom containing protons and neutrons –How are the protons and neutrons held together? Strong Force - an attractive.

Protons and neutrons are called nucleons. An atom is referred to as a nuclide. An atom is identified by the number of protons and neutrons in its nucleus.

Protons and neutrons are called nucleons. An atom is referred to as a nuclide. An atom is identified by the number of protons and neutrons in its nucleus.

Inside an Atom. The Atom As A Model Structure of an Atom Atoms consist of protons, electron, and neutrons Atoms consist of protons, electron, and neutrons.

Inside an Atom. The Atom As A Model Structure of an Atom Atoms consist of protons, electron, and neutrons Atoms consist of protons, electron, and neutrons.

C2 Chemistry An atom: Number of Protons = Number of Electrons Mass number = Protons + Neutrons Periodic table arranges elements by ATOMIC NUMBER (proton.

C2 Chemistry An atom: Number of Protons = Number of Electrons Mass number = Protons + Neutrons Periodic table arranges elements by ATOMIC NUMBER (proton.

Inside the atom…. There is the nucleus The nucleus has protons and neutrons The protons have a positive electrical charge And the neutrons don’t have.

Inside the atom…. There is the nucleus The nucleus has protons and neutrons The protons have a positive electrical charge And the neutrons don’t have.

Nuclear Chemistry. Nucleus of an atom contains protons and neutrons Strong forces (nuclear force) hold nucleus together – Protons in nucleus have electrostatic.

Nuclear Chemistry. Nucleus of an atom contains protons and neutrons Strong forces (nuclear force) hold nucleus together – Protons in nucleus have electrostatic.