Science Lesson 3

Question 1

Covalent Bond

Answer 1

Second Type of Chemical Bond; it forms when two atoms share one or more pairs of electrons

Question 2

Ionic Bonds

Answer 2

Electrons are transferred between atoms

Question 3

Electronegativity

Answer 3

measures an atom’s ability to attract electrons within a chemcial bond

Question 4

High Electronegativity

Answer 4

Indicates a greater ability to attarct electrons

Question 5

How much Electronegativity in a Covalent Bond

Answer 5

Less Than 1.7

Question 6

How much Electronegativity in a Ionic Bond

Answer 6

More Than 1.7

Question 7

Molecules (Formation of Covalent Compounds)

Answer 7

When two or more nonmetallic elements are combined

Question 8

1. Single Covalent Bond
2. Double Covalent Bond
3. Triple Covalent Bond

Answer 8

3 Types of Covalent Bonds

Question 9

Single Covalent Bond

Answer 9

Denoted by one short line; sharing of one electron pair

Question 10

Double Covalent Bond

Answer 10

Denoted by two short line; sharing of two electron pair

Question 11

Triple Covalent Bond

Answer 11

Denoted by three short line; sharing of three electron pair

Question 12

Covalent Compounds Formulas

Answer 12

Derived from their LEDS; shows the number of each atom with the more electropositive element listed first, followed by more electronegative element

Question 13

Diatomic Molecules

Answer 13

molecules that contain only 2 atoms

Question 14

Electropositive

Answer 14

implies having the tendency to lose electrons and form positive ions

Question 15

Electronegative

Answer 15

implies having the tendency to gain electrons to form negative ions

Question 16

Molecular Geometry

Answer 16

Gives us the general shape of the molecules; Depends on the number of Bonding Pairs

Question 17

Linear Shape

Answer 17

Produced when two groups around a central atom try to get as far as away as possible

Question 18

Trigonal Planar

Answer 18

occurs when a central atom is bonded with three atoms, with no lone pairs on the central atom

Question 19

Tetrahedral Molecular

Answer 19

forms when a central atom is bonded to four other atoms, again with no lone pairs

Question 20

Trigonal Bipyramid

Answer 20

five electron pairs surround a central atom. Three pairs are positioned in a triangular plane and one above and below equal to 90 degrees

Question 21

Octahedron

Answer 21

3-Dimensional geometric shape with eight faces; Each face is a triangle

Question 22

Properties of Ionic Bonds

Answer 22

most common between metals with low ionization energy like lithium, sodium, and potassium