Bell%20work:%20Bohr%20Diagrams/%20Lewis%20Dot%20Basics

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Bell%20work:%20Bohr%20Diagrams/%20Lewis%20Dot%20Basics

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Bell work: Bohr Diagrams/ Lewis Dot Basics In your notebooks, draw the Bohr diagrams and Lewis Dot Structures for the first twenty elements. Show them to your teacher ... – PowerPoint PPT presentation

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Title: Bell%20work:%20Bohr%20Diagrams/%20Lewis%20Dot%20Basics

1
Bell work Bohr Diagrams/ Lewis Dot Basics

In your notebooks, draw the Bohr diagrams and
Lewis Dot Structures for the first twenty
elements. Show them to your teacher when
completed.

2
Bonding
A ________ _______ is the electrical force that
links atoms together. Bonding occurs when
valence electrons move around.

Elements can bond in three ways
Covalent Bond
Ionic Bond
Metallic Bond

3
Covalent Bonds

As the attractions bring the atoms together,
electrons from each atom are attracted to the
nucleus of both atoms, which share the
electrons.

4
Covalent Bonds

The sharing of electrons between nonmetal atoms
is called a ____________, which holds the atoms
together as a molecule.

Three types of bonds
Single
Double
Triple

5
Covalent Bonds

If each atom has room for an electron in its
outer __________ shell and there is a strong
attraction of both nonmetal atoms, a covalent
bond will result.

6
Nonmetal atoms will covalently bond until their
outer valence shell is _______. Nonmetal atoms,
covalently bonded as a molecule, are
________than they were as separate atoms.
7
Types of Covalent Bonds

Valence electrons that are EQUALLY shared between
atoms are known as ________________________

8
Types of Covalent Bonds

Shared valence electrons that are more attracted
to one atom over another is called a
_______________

9
Other definitions

Molecule-neutral group of atoms united by
covalent bond
Compound-neutral group of ions united by an ionic
bond

10
Ionic Bonding

When an atom loses or gains an electron, it is
called an ___________.
An _________ ________ is a positive ion and a
negative ion joining together by TRANSFERRING
electrons.

11
A ______ is a charged atom that has lost one
or more electrons. The result is a positive
charge. An ________ is a charged atom that has
gained one or more electrons. The result is a
negative charge.
12
Ionic Bonding

The attractions between the protons and electrons
of atoms can cause an electron to move completely
from one atom to the other.
Ionic Bonds are made between _________ elements
and ___________ elements

13
Ionic Bonding Examples
14
Oxidation Number

The _______________ ______________ is the total
number of electrons that an atom either gains (-)
or loses () in order to form a chemical bond
with another atom.