Atomic Structure and Periodic Table Trends

Question 1

Elements that have the most stable electron configurations.

Answer 1

Noble Gases

Question 2

Element that forms a 2+ion to have the same electron configuration as Ar

Answer 2

Calcium

Question 3

The diatomic gas in the s block.

Answer 3

Hydrogen

Question 4

Elements that share properties of non metals and metals and are often used as semi conductors

Answer 4

Metalloids

Question 5

Soft metals that react violently with water

Answer 5

Alkali Metals

Question 6

Highly reactive colored gases

Answer 6

Halogens

Question 7

Most reactive nonmetal

Answer 7

Flourine

Question 8

Explain the relationship between electron arrangement, chemical properties and the arrangement of the periodic table

Answer 8

They are grouped according to valence electrons

Question 9

Where in their group would you expect to find elements with the largest atoms

Answer 9

Bottom Left

Question 10

Compare and contrast Noble gases and Halogens

Answer 10

They both are nonmetals. Halogens are Reactive and Noble gases are nonreactive

Question 11

What properties can you use to tell the alkali , alkaline, and transition metals apart?

Answer 11

Alkali-Reacts with water
Alkaline-white compounds
Transition-colored compounds

Question 12

Explain why alkaline earth metals are less reactive than alkali

Answer 12

They one have one electron to lose so its easier to lose it

Question 13

What group of element is all gases

Answer 13

Noble gases

Question 14

What group of elements are the most reactive NONMETALS

Answer 14

Halogens

Question 15

What group of elements are the most reactive metals

Answer 15

Alkali

Question 16

Why does the atomic radium decrease as you move across a period

Answer 16

Increase the nuclear charge by the addition of a positive charge

Question 17

Why does electronegativity decrease as you move down a group

Answer 17

Move energy levels which causes shielding

Question 18

What are the main properties of transition metals

Answer 18

Bright, shiny, colorful solutions

Question 19

List three uses of the noble gases

Answer 19

Lasers, Lights, Welding

Question 20

Atomic Radius
Down the period ___
Across the period ____

Answer 20

Down the period INCREASES

Across the period DECREASES

Question 21

IE
Down the period ___
Across the period ____

Answer 21

Down the period DECREASES

Across the period INCREASES

Question 22

EN
Down the period ___
Across the period ____

Answer 22

Down the period DECREASES

Across the period INCRESES

Question 23

Why is the trend for ionization energy the same as that for electronegativity

Answer 23

Both increase and you move across and increase when they move up

Question 24

Biggest radius metal

Answer 24

Cs

Question 25

Biggest IE

Answer 25

He

Question 26

Biggest EN

Answer 26

F

Question 27

Grouping elements in groups of 3

Answer 27

Triads

Question 28

First grouping of the elements where they were grouped into sets of 3

Answer 28

Johann Dobereiner

Question 29

Made a table based of the law of octane

Answer 29

Newlands

Question 30

The first periodic table was credited to ___ and was arranged according to ___-

Answer 30

Mendelo; mass

Question 31

The elements in the modern periodic table are arranged according to increasing _____ due to the work from ____

Answer 31

Atomic Number; Mosely

Question 32

arrangement based on the number of ____ in the nucleus

Answer 32

protons

Question 33

The modern form of the periodic table results in the ____ which states that when elements are arranged according to increasing atomic number, there is a periodic repetition of their Chemical and physical ___

Answer 33

Periodic law-properties