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Periodic Table Flashcards

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1
Q

How elements are arranged in the periodic table?

A

According to increasing atomic number (Z)

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2
Q

The COLUMNS of periodic table are called_____.

A

Groups

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3
Q

The ROWS of periodic table are called_____.

A

Periods

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4
Q

s-block elements

A

Elements which have valence electrons in s sub-shell

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5
Q

p-block elements

A

Elements which have valence electrons in p sub-shell

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6
Q

d block & f block elements

A

Elements which have valence electrons in d sub-shell & f sub-shell

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7
Q

GROUPS of the periodic table represent

A

Number of valence electrons in the outermost shell

*They have similar physical and chemical properties

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8
Q

PERIOD of the periodic table represent

A

Number of electron shells

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9
Q

Position of metals on periodic table

A

On the left side

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10
Q

Position of nonmetals in the periodic table

A

on the right side

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11
Q

Position of metalloids in the periodic table

A

Along the zig-zag line of periodic table

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12
Q

Metalloids of periodic table

A

Boron
Silicon
Germanium
Arsenic
Antimony
Tellurium
Polonium

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13
Q

Physical & chemical properties of metalloids

A

Physical properties are similar to metals
Chemical properties are same with nonmetals

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14
Q

Conductivity of metal & nonmetals

A

Metals-high conductivity of heat and electricity
Nonmetals-poor conductivity of heat and electricity

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15
Q

_____ is nonmetal that can conduct heat and electricity.

A

Graphite

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16
Q

How many groups are in the periodic table?

A

18 groups

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17
Q

How many periods are there in periodic table?

A

7 periods

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18
Q

First 10 elements of periodic table

A

H,He,Br,B,C,N,O,F,Ne

*Hi He Likes Beer But,Can Not Offer Free Now

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19
Q

elements of periodic table(Z=11 to 20)

A

Na,Mg,Al,Si,P,S,Cl,Ar,K,Ca

*Nancy Might Always Sing Perfect Songs Clearly Around King Castle

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20
Q

elements of periodic table(Z=21 to 30)

A

Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zi

*Scary Tiger View Crying Man,Feast Contain Nice Cupcakes and Zucchini

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21
Q

1st row of f block is called

A

Lanthanide

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22
Q

2nd row of f block is called

A

Actinides

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23
Q

Lanthanides

A

1st row of f block
Shiny reactive metals
Naturally found

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24
Q

Actinides

A

2nd row of f block
Radioactive and unstable metals
Man made

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25
Gp 1 elements are
Alkali metals
26
Gp 2 elements are
Alkali earth metals
27
Elements in Gp 3 to 12 are
Transition metals
28
Gp 17 elements are
Halogens
29
Gp 18 elements are
Noble gases or inert gases
30
Why gp 18 elements are unreactive?
bcus they have fully filled outer shells.Therefore they are called inert gases.
31
Physical properties of metals,nonmetals and metalloids
Metals-Melleable & ductile Nonmetals-Brittle Metalloids-Brittle
32
Oxides of metals,nonmetals and metalloids
Metals-Basic oxides Nonmetals-Acidic oxides Metalloids-Amphoteric oxides
33
Boiling point and melting points of metals,nonmetals and metalloids
Metals-High Nonmetals-Low Metalloids-Vary
34
Group 1 metals
also known as alkali metals Li Na K Rb Cs
35
Valence electrons of alkali metals
1 electron in the outermost shell Forms +1 cation
36
Physical appearance of alkali metals
All are slivery metals
37
Reactivity of alkali metals
Alkali metals are very reactive *Reactivity INCREASES down the group* Store in oil and rarely form as elements
38
Melting point of alkali metals
DECREASE down the gp
39
Alkali metals react with water to form
Hydrogen and metal hydroxides
40
Physical properties of alkali metals
1)Good conductors of heat and electricity (movementof electrons in their outermost shell) 2)Low densities 3)Grey shiny metals
41
Chemical properties of alkali metals
1)Very reactive 2)Form H2 and Hydroxides when react with water 3)Form ionic compounds with nonmetals
42
Group 2 elements
also known as alkaline earth metals Br Mg Ca Sr Ba
43
Valence electrons of alkali metals
2 electrons in their outermost shell Forms +2 cation
44
Reactivity of alkaline earth metals
Second most reactive metals *Reactivity INCREASES down the group
45
Group 17 elements
Also known as halogens (nonmetals) F Cl Br I
46
Group 17 elements exist as ______molecules.
Diatomic molecules (Cl2,Br2,I2)
47
Valence electrons of halogens
7 electrons in their outermost shells *Commonly form -1 anions
48
Reactivity of halogens
Reactive nonmetals *Reactivity DECREASES down the gp
49
Physical appearance speciality of halogens
They are colored compounds
50
All halogens exist as same physical states.True or False
False F2,Cl2-gases Br2-Liquid I2-solids
51
Chemical properties of halogens
1)Form ionic compounds with metals 2)Form covalent compounds with nonmetals 3)Form metal halides with Gp 1 elements 4)Form insoluble salt with silver 5)Displacement properties
52
Alkali metals react with nonmetals to form
ionic compounds
53
Alkali metals react with halogens to form
Metal halides
54
Halogens react with metals to form
Ionic compounds
55
Halogens react with nonmetals to form
covalent compounds
56
Halogens react with_____ to form insoluble salts
Silver(Ag)
57
Displacement properties if halogen
More reactive halogens displace the ions of less reactive halogens from the compound *Reactivity DECREASES down the gp
58
Which halogen have highest reactivity?
Fluorine
59
Halogen with least reactivity
Iodine
60
Group 18 elements
Also known as noble gases or inert gases He N Ar Kr Xe
61
Valence electrons of inert gases
8 electrons (stable octet) *He is stable duplet*
62
Noble gases exists as ____ and are____ gases
Monoatomic Colorless
63
Noble gases have _____ ionization energy.Why?
Highest bcus they have stable octet so more energy is required to remove their electrons.
64
Reactivity of noble gases
Non reactive
65
First row of d block elements are _____.
Transition metals (they are from gp 3-12)
66
Transition elements have _____.
Many oxidation numbers(Form cations)
67
Ions of transition elements are____.
Colored
68
Transition elements are ______ & _____.
1)elements with incomplete d sub shells 2)Forms ions with incomplete d sub shells
69
Transition elements with incomplete d subshells
Sc Ti V Cr Mn Fe Co Ni
70
Transition elements that forms ion wuth incomplete d sub shells
Copper(Cu) They form +1,+2,+3 cations which make it incomplete d subshells
71
Is Zn transition elements? Why?
No,Zn is not transition elements bcus they have complete d subshells even if they form +2 ions
72
What element is not transition elements in first row of d block?
Zinc
73
Physical properties of transition elements
1)High condutivity 2)High bp and Mp 3)Malleable & ductile 4)Fe,Co,Ni-ferromagnetic
74
Special properties of Fe,Co,Ni
They are ferromagnetic
75
Chemical properties of transition elements
1)Forms ions with more than one oxidation number 2)Form complex ions 3)Form colored compounds 4)Act as catalysts
76
Heterogeneous catalyst
Catalyst is in different state with reactants (Reactants ကsolids but catalysts ကgas)
77
Homogeneous catalyst
Catalysts are in same state as reactants
78
Transition metals can have only one oxidation number.True or False?
False they can form ions with various oxidation numbers.
79
Transition metal acts as_____.
catalysts
80
Types of magnetism
1)Diamagnetism 2)Paramagnetism 3)Ferromagnetism
81
Which elements have diamagnetism?
Elements without unpaired electrons
82
Which elements have paramagnetism?
Elements with unpaired electrons
83
Which elements have Ferromagnetism?
Fe,Co,Ni
84
What is the difference between paramagnetism and ferromagnetism?
Ferromagnetism can create strong permanent magnet and can retain magnetism.
85
Alkali metals have _____ ionization energy.Why?
Low Bcus they tend to lose one electrons from their outermost shell.
86
The conductivity of alkali metals is bcus pf____
the mobility of electron in their outermost shells
87
Melting point of Halogen
INCREASE down the gp
88
Oxides of Na,Mg and Al have _____ structure.
Giant ionic structure
89
Oxides of P,S,Cl have _____ structure.
Molecular covalent structure
90
Oxides of Si have _____ structure.
Giant covalent structure
91
Ionic character of Gp 3 elements depends on _____.
Electronegativity differences
92
The oxides have more ionic structure,if they have more electronegativity.True or False?
False Oxides have more ionic structure if they have less electronegativity.
93
Which oxides can conduct electricity in molten state?
Oxides with giant ionic structure (Na,Mg,Al) metal oxides
94
Can Silicon oxide conduxt in molten state?
Yes but very low conductivity
95
Metal form _____ & _____ oxides.
Ionic and basic oxides
96
Nonmetals form _____ & _____ oxides.
Covalent and acidic oxides
97
Which elment form Amphoteric oxides?
Metalloids
98
Which element form Amphoteric oxides in period 3?
Aluminium They act as base when react with acid and acts as acid when react with base.
99
Is SiO2 form amphoteric oxide?
No They form acidic oxides
100
Basic oxides of Period 3
NaO2 MgO
101
Acidic oxides of Period 3
SO2 PO3 SiO2 Cl2O
102
Amphoteric oxide of Period 3
Al203
103
Basic oxides of Period 3 react with water to form ____.
Basic hydroxides
104
Basic oxides react with acid to form ____.
salt and water
105
Acidic oxides of Period 3 react with water to form _____.
Acidic solution (Acidတွေဖြစ်သွား)
106
Which acidic oxide in Period 3 does not react with water?
Silicon dioxide *but react with alkali to form silicates*
107
Do aluminium oxide affect the pH of the solution?
No they do not affect the pH of solution bcus they are insoluble.
108
Compounds of ____ have high melting points.
Giant ionic or giant covalent structure
109
Compounds of ____ have low melting points.
molecular covalent structure
110
All transition metals show +2 and +3 oxidation states.True or False?
True
111
What can we know from the columns of periodic table?
Groups of the elements with same properties as well as the valence electrons
112
What can we know from the rows of periodic table?
Periods(i.e.energy shells)
113
Properties of metals
1)Good conductor of heat and electricity 2)high melting point and boiling point i.e.solid at room temperature except mercury 3)hard,strong except Na,K 4)ductile,malleable 5)shiny 6)high density or heavy 7)form positive ions when react 8)react with oxygen to form basic oxides
114
Properties of nonmetal
1)Poor conductor of heat and electricity 2)low melting point and boiling point i.e.most are gases at room temperature 3)brittle 4)dull 5)low density or heavy 6)form negative ions when react 7)form acidic oxide when react with oxygen
Chemistry
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