Final

Question 1

Describe the properties of noble gases. why does every element want to be with them

Answer 1

They are stable and have a full outer shell

Question 2

The group 1 elements ( except for hydrogen) are also known as the…

Answer 2

Alkali metals

Question 3

The group 7A elements are known as the

Answer 3

Halogens

Question 4

Why do elements in the same group have the similar chemical properties

Answer 4

They have the same number of valance electrons

Question 5

How does the atomic radius change from left to right across a row in the periodic table

Answer 5

The atomic size decreases moving left to right because the protonic pull is increased without changing the shielding effect

Question 6

What is electronegativity

Answer 6

Electronegativity is the tendency of an Adam to attract electrons when bonded

Question 7

The vertical columns of the periodic table are called…

Answer 7

Groups or families

Question 8

The horizontal rows of the periodic table are called…

Answer 8

Periods

Question 9

On which side of the table are the nonmetals

Answer 9

Right

Question 10

Largest electronegativities in their periods

Answer 10

Halogens

Question 11

Have full outer shells

Answer 11

Noble gases

Question 12

Fluorine is a member of this group

Answer 12

Halogens

Question 13

These elements have two valance electrons

Answer 13

Alkaline earth metals

Question 14

Highest ionization energies of their periods

Answer 14

Noble gases

Question 15

How does the size of a magnesium ion compare to it’s neutral atom

Answer 15

Magnesium forms a +2 ion when it loses electrons. Because of this, the Iion will be smaller in size than the neutral Atom

Question 16

What is the difference between intermolecular and intramolecular forces give. examples of each

Answer 16

Intermolecular forces are between the molecules. Examples: hydrogen bonding, Dipole dipole, London dispersion.

Intramolecular forces are within the molecule. Examples: ionic and covalent

Question 17

What is meant by a strong or weak electrolyte

Answer 17

The strong electrolytes ionize 100% of the time

The weak electrolytes ionize less than 100% of the time

Question 18

Define solute and solvent

Answer 18

Solute is the substance being dissolved and the solvent is the substance doing the dissolving

Question 19

What is pH

Answer 19

The measure of the amount of the H+ in a solution

Question 20

Soluble

Answer 20

Solid can be dissolved

Question 21

Miscible

Answer 21

Liquid can dissolve

Question 22

Titration

Answer 22

A lab technique in which a solution of known concentration reacts with a solution of an unknown concentration

Question 23

By adding a crystal to a solution how would the results tell me the type of solution it is

Answer 23

If it is unsaturated it will dissolve
If it is saturated it will fall to the bottom
If it is supersaturated it will precipitate

Question 24

What is a reversible reaction

Answer 24

Products can break apart and become reactants

Question 25

What does it mean that a system at equilibrium is dynamic

Answer 25

The system is still reacting but the ratio remains constant

Question 26

What are oxidation and reduction

Answer 26

Oxidation is losing electrons

reduction is gaining electrons

Question 27

Which subatomic particle plays the greatest part in determining the physical and chemical properties of an element

Answer 27

An electron

Question 28

The outermost electrons in an atom are called the _______ electrons

Answer 28

Valance electrons

Question 29

The modern periodic law states that there is a periodic repetition of the physical chemical properties of elements when the elements are arranged in order of _______________

Answer 29

Atomic #

Question 30

How does atomic radious change from left to right across a row in the periodic table.

Answer 30

Decreases

Question 31

As you move from left to right across the second period of the periodic table

Answer 31

The ionization energy increases