6

Question 1

Group number

Answer 1

Is representative of the number of electrons in the highest energy level

Question 2

How would you recognize that it was a transition metal, based in the electron configuration?

Answer 2

It would have something in the d section

Question 3

If the electron configuration contains an f what is it

Answer 3

An inner transition

Question 4

Atomic number =

Answer 4

of protons

Question 5

When s and p are full it is called a

Answer 5

Noble gas

Question 6

When identifying an element, first see if ______ is full, the look for _

Answer 6

First see if s and p are full, then look for d

Question 7

Metals are what kind of ion

Answer 7

Cations

Question 8

Nonmetals are what kind of ion

Answer 8

Anions

Question 9

Cations-

Answer 9

Like to give electrons away - become s,Allen and are positive

Question 10

Anions -

Answer 10

Like to take electrons away - become bigger and are negative

Question 11

Atomic radius is measured in

Answer 11

Picometers

Question 12

Ion

Answer 12

When an element gets a positive or negative charge

Question 13

Anions start out ____ than cations

Answer 13

Bigger

Question 14

Anions are bigger because

Answer 14

Negatives are bigger than positives

Question 15

Explain the difference between the first and second ionization energy?

Answer 15

First = energy to remove one electron
Second = energy to remove two electrons
It just continues on

Question 16

A representative element is partially ____ unlike ____ noble gases

Answer 16

Partially full unlike noble gases

Question 17

Ionization increases as you go from ____ to _____?

Answer 17

Left to right ->

Question 18

Representative are when _ and _ aren’t full

Answer 18

S and p

Question 19

Halogens want to ____ an electron to be full

Answer 19

Take

Question 20

Electron negativity is the ability

Answer 20

Of an atom to attract an electron

Question 21

Electron are elements _____ an electron while ionization are these _____ surrendering an electron

Answer 21

A. Accepting

B. Surrendering

Question 22

If it’s a metal it wants to ____ an electron

Answer 22

Surrender

Question 23

Elements are

Answer 23

Neutral

Question 24

Atomic radius

Answer 24

Take two atoms and connect the nucleus to divide in half

Question 25

Ionic energy

Answer 25

The energy required to move an electron from an atom

Question 26

Noble gases never want to ____

Answer 26

React?

Question 27

The more protons the ___ ___ __ and the ___ it becomes

Answer 27

Stronger the pull Smaller

Question 28

By the year 1700 only __ elements were discovered

Answer 28

13

Question 29

* 1765-1775 in one decade ___ new elements were discovered | * 1780-1849 who published a classification systems

Answer 29

* 1765-1775 in one decade 5 new elements were discovered | * 1780-1849 J.W. Dobereiner published a classification systems

Question 30

Elements were placed in a

Answer 30

Triad

Question 31

Triad

Answer 31

• 3 elements of similar properties were placed in a triad - Noted that one element in each triad to have similar chemical properties with values that fell midway between those of the other two elements • these values were close to the actual atomic mass

Question 32

• in 1869 a Russian chemist and teacher, ______ published a table of the elements

Answer 32

Dimitri Mendeleev

Question 33

• Later that year ____, a German chemist published a nearly identical table

Answer 33

Meyer

Question 34

Who got the credit

Answer 34

Mendeleev because he published first

Question 35

How did Mendeleev arrange his periodic table

Answer 35

* Mendeleev arranged the elements in his periodic table in order of increasing atomic mass * Mendeleev developed his periodic table before it was discovered that the atoms of each element contain a unique number of protons (atomic number)

Question 36

Modern periodic table

Answer 36

* elements arranged in order of increasing atomic number * There are 7 rows or periods * Each period corresponds to a principle energy level * Moving from left to right the properties of the elements within a period change * Moving from one period to the one above or below the properties repeat. Columns share similar chemical properties

Question 37

Periodic law

Answer 37

• when atoms are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties

Question 38

* Blue labels - | * Red labels -

Answer 38

* Blue labels - used by scientists in Europe | * Red labels - used by scientists in U.S

Question 39

Metals, nonmetals, and metalloids

Answer 39

• across a period the properties of elements becomes less metallic and more nonmetallic

Question 40

Metals

Answer 40

80% of elements are metals • Properties of metals: • Good conduction if heat and current • A cut or shined surface will have a high sheen • Solid at room temperature (except mercury) • Ductile - can be drawn into wires • Malleable - can be hammered into thin sheets

Question 41

Non metals

Answer 41

Nonmetals • in the upper right corner of the periodic table plus hydrogen • A variation of forms and properties • solids - brittle • Poor conductors of heat and electricity • Except for Carbon!

Question 42

Metalloids

Answer 42

separates the metals from the nonmetals • Properties similar to metals and nonmetals • Behavior depends on conditions • Silicon is a nonconductor, mixed with boron it becomes a conductor

Question 43

Define Alkali

Answer 43

Alkali comes from Arabic al quail meaning ashes

Question 44

Define halogens

Answer 44

Comes from Greek word Hal’s meaning “salt” and the Latin word genesis meaning “to be born”

Question 45

Electron configuration in groups

Answer 45

Electron configuration in groups • elements can be sorted into: • Noble gases: section 8a their s and p energy levels are full and satisfied • Representative elements: groups 1A through • Display a wide range of physical and chemical properties, some are metals, some are nonmetals and some are metalloids • Transition metals: these elements are characterized by the presence of electrons in the d sub level • Inner transition metals- f group • Based on their electron configuration