transtion elemnet Flashcards
1
Q
A
2
Q
A
3
Q
A
4
Q
A
5
Q
A
6
Q
A
7
Q
A
8
Q
A
9
Q
A
10
Q
right the electronic configuration of the following and oxcdition state sc ti v cr mn fe co ni cu zn
A
sc +3 ti +2 , +3 , +4 v +2 , +3 , + 4 , +5 cr +2 , +3 , +6 mn +2 , +3 , +4 , +5 , +6 , +7 fe +2 , +3 , +4 , +5 , +6 co +2 , +3 , +4 ni +2 , +3 +4 cu +2 , +1 zn + 2
11
Q
till me about the number of single electron in 1st series
A
the number of single electron increses graduly to rich mn and decreses graduly to rich zn
12
Q
A
13
Q
the diff between oxidized and reduced
A
oxidized = lose electrons and oxidation number increases reduced = gain electron and oxidation number decreases
14
Q
A
15
Q
A
16
Q
A
17
Q
A
18
Q
A
19
Q
A
20
Q
what do you know about atomic mass of !st transtion element and except any element
A
it increases graduly with increasing their atomic number exsept nickel
21
Q
why nickel is abnormal in his atomic mass
A
bec nickel has five isotopes with mass 58.7 u
22
Q
the radii of transtion element are relively constant from ………..
A
cr to cu
23
Q
there is …………in atomic radii as we move through first transtion
A
a little change
24
Q
diff para magnetism
A
it is ocuer in ion , atoms and molucules which contines orbitals fill out by single electron
25
diff para magnetism
it is occurs in ion , atoms and molucules which contines orbitals fill out by single electron
26
the magntic moment and the magntic atteactive incrase by increasing
by increasing the single electron in d sup level
27
the magntic moment = 0 when
d suplevel is compltly filled by paring electron or embty from all electron
28
diff para magntic substance
it is the substance that atracrt to magnet duto presence of single electrons in orbitals of the last sup level
29
diff di magnism
it is occurs in ion , atom and molucules which contines orbitals fill out by paried electron
30
diff di substance
it is the substance repel to magnet duto lake of single electrons in orbitals of the last sup level
31
the spindle movement of paried electrons are , so magnetic moment =
is oppiste each other =zero
32
most transtion elements compound are para magnteic
bec most transtion element has a single electron in their orbitals of the d sup level
33
iron II sulphate is a para magnetic substance
bec the electronic configuration of fe II ion is Ar 18 3d6 so fe II ion has 4 single electron so fe ion is para magntic supstance
34
transtion element used in making alloys
bec there atomic radii is relatvly constant
35
transtion element have a high melting and boling point
bec they have astrong metalic bond resulting from both the electrons of 4s and 3d
36
transtion element has metalic bond resulting from
both the electrons of 4s and 3d
37
most of transtion element have high denisty by increases atomic number
bec the atomic mass increases while the atomic volume is relatively constant
38
high denisty increases by
by increases atomic number
39
give me a example about varition in their chemical activity
cu has limted active iron is more active and rust in air sc very active replaces hydrogen of water vigorously
40
white color composed into................each has of them ...........
7 color , and has a ceritien energy
41
the number of transtion element 27 not 30
bec the IIb group not consderd as transtion elmenet bec the they compltily filled in their atomic state and only oxidation state state +2
42
the oxidation states of elements of the first transtion elements incrases till group VIIB then gradully decreases till ritch IIB group
bec the single electron increase to rich mn and decreases to rich zn
43
if the substance absorb the 7 color
the black color appears to eye
44
right the color and their compolmntry color
red green red orange green blue orange blue orange yellow blue vilot yellow vilot
45
most of ion of transtion elements are colored
duto existance of single electron in orbitals of the d sup level
46
chromium III compound appears green
bec the energy of red color enough to excite the single electrons of cr+++ so it absorbs the red color and appears the green
47
zn+2 ion coloer less
bec the d sup level is compltly filled so the all electron paired and the energy needed to excite electron is very high
48
sc +3 ion is color less
bec the d sup level is empty
49
diff catalyst
the substance which increases the rate of the reaction with out it self being changed
50
the substance appears colored to the eye by choose the absorbed color the sum of colures which are not absorbed
the sum of color which are not absorbed
51
the color that not absorbed by a subsstance is known as
complementry color
52
arrange according to chemical activity sc - cu - fe
sc - fe - cu
53
transtion element are metals
bec they are solid and have a metalic luster and good conductors of heat and electristy and they have melting and boiling point
54
elemnets of group VIII are different from other transtion elment in their properties
bec this group simmillar in horizantal more than its vertical
55
secound transtion series start and end by
Yttrium end cadmium
56
3rd transtion series start and end by
lanthanum end mercury
57
the first transtion series start after
calcium
58
the element give the maximum oxidation state when
by losing all electrons of 4s and 3d suplevels
59
the maximum oxidation number of any elemnet does not exceed its group number exsept
group IB
60
denisty increase by increases what
atomic number
61
ni has higher density than fe ti cr all the previous choose
all the previous
62
transtion metals are attracted to external magnetic fileds
most transtion metals have a single electrons in the d sup level
63
give reason the density of the elements of the first transition series increases by increasing of atomic numbers
d =
64
the maximum oxidation number for transtion element in the element of the first transtion series
Mn
65
the atomic number of a metal from the first transtion series it is magntic moment 2 =
atomic number + 28 or 22
66
elements of group VIII are different from transition element in their properties
jkm
67
68
