Upload
beelinglim
View
358
Download
0
Embed Size (px)
DESCRIPTION
Citation preview
ELEMENTS IN A PERIOD
PERIOD 3Naughty Man And Silly People Should Consume A lot of Kentucky Combo
WRITE THE ELECTRON ARRANGEMENT OF PERIOD 3
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8
2.8.1 2.8.4 2.8.5 2.8.6 2.8.7 2.8.82.8.2 2.8.3
2.8.8.1 2.8.8.2
1 2
Group 1
Group2
Group 13
Group 14
Group 15
Group 16
Group 17
Group 18
Period 1
Period 2
Period 3
Period 4
1 2
3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18
19 20
PERIOD 3
ACROSS THE PERIOD 3…
1. Atomic size no.of proton in nucleus ↑ positive charge of nucleus ↑ force of attraction of nucleus on the electrons ↑2. Metal → metalloid → non-metal3. Conductivity .4. Electronegativity The atomic size ↓ Positive charge In nucleus ↑ The atom will easily accept electrons to achieve
octet electron arrangement.
PROPERTIES Metal → metalloid → non-metal Oxide: basic → amphoteric → acidic
Base
acid
amphoteric
Each oxide will have
2 reactions
Metal oxide (basic oxide) With water With acid
Non- Metal (acidic oxide) With water With alkali
AMPHOTERIC OXIDE
With acid With alkali
TRANSITION METALS
EXAMPLE OF TRANSITION METALS
See That Volvo Company Manufactured First Class New Car Zoom!!
Sc Ti V Cr Mn Fe Co Ni Cu Znrou
THE PHYSICAL PROPERTIES OF TRANSITION METALS.
Shiny surfaces Ductile and Malleable High melting point and boiling point High density Good conductor of heat and electricity.
PROPERTIES OF TRANSITION METALS
COLOR OF TRANSITION METALS
Fe3+
Fe2+
Cu2+
Ni2+
USES OF TRANSITIONS METALS
1 2
3
4
56789
QUESTION 1: List all the elements in Group 3.
Ans: Na, Mg, Al, Si, P, S, Cl, Ar
QUESTION 2: Describe the physical properties across
the Period. Ans: The atomic size decreases.(no.of proton
in nucleus ↑, positive charge of nucleus ↑, force of attraction of nucleus on the electrons ↑)
Metal → metalloid → non-metal Conductivity decreases.
QUESTIONS 3 Describe the electronegativity of the
elements across the period 3.
Ans: Electronegativity ↑ The atomic size ↓ Positive charge In nucleus ↑ The atom will easily accept electrons to
achieve octet electron arrangement.
QUESTION 4: State the oxide properties of the
elements across the period 3.
Ans: Oxide: basic → amphoteric → acidic
QUESTION 5: Metal oxides react with _______ to form
salt and water.
Ans: acid
QUESTION 6: Transition elements also called
as____________.
Ans: Transition metals
QUESTION 8: One of the properties of transition
metals is form ions which are colored. What is the color of iron(II) and iron (II)?
Ans: Iron(II) – green Iron(III) - brown
QUESTION 7: Describe the physical properties of
transition metals.
Ans: Shiny surfaces Ductile and Malleable High melting point and boiling point High density Good conductor of heat and electricity.
QUESTION 9: Transition metals can acts as catalysts
in manufacturing the margarine. What is the transition metals used?
Ans: Nickel
SUMMARY
Period 3 Transition metals
uses
Special properties
Physical
Changes and reaction in oxide
physical