Chemistry F4 Periodic Table Exersice 1

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    Tutor: Siti Aizatie RamliChemistry Form 4

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    CHAPTER 4: PERIODIC TABLE OF ELEMENTS

    Instruction: Fill in the blank with appropriate answer.

    In Periodic Table, elements are arranged in order of increasing __________________________.

    The vertical column is known as _________________ and the horizontal rows are known as_____________.

    The elements in the same group have the same number of _______________________.

    The number of _______________________ determined the period number.

    GROUP 1

    The elements of Group 1 are: ____________ , ____________ , ____________ , ____________ ,

    ____________ , and ____________ .

    Elements in Group 1 are also known as ____________________.

    Number of valence electron: ____.

    The elements in Group 1 are good ______________ of heat and electricity.

    As we go down Group 1;

    1. The atomic radius _________________.

    2. The melting point and boiling point _________________.

    3. The density ___________________.

    4. The electrostatic force of attraction between nucleus and the valence electron

    becomes __________.

    5. The elements have a higher tendency to ______________ its valence electron.

    6. The electropositivity ________________.

    7. The reactivity ______________ down the group.

    Chemical properties of Group 1:

    1. React actively with water to produce ___________________ and _________________

    gas.

    Chemical equation:

    2. React with halides to form ____________________.

    Chemical equation:

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    Tutor: Siti Aizatie RamliChemistry Form 4

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    3. Burn in air to produce _________________ which is soluble in _______________.

    Chemical equation:

    GROUP 17

    The elements of Group 17 are: ____________ , ____________ , ____________ , ____________ ,

    and ____________ .

    Elements in Group 17 are also known as ____________________.

    Number of valence electron: ____.

    They exist as ______________.

    As we go down Group 17;

    1. The atomic radius _________________.

    2. The melting point and boiling point _________________.

    3. The density ___________________.

    4. The electrostatic force of attraction between nucleus and the valence electron

    becomes __________.

    5. The elements with smaller nuclei can ___________ electron more easily.

    6. The electronegativity _________________.

    7. The reactivity ______________ down the group.

    Chemical properties of Group 17:

    1. React with water to form ____________.

    Chemical equation:

    2. React with alkali solution to form ____________ and _____________.

    Chemical equation:

    3. React with iron wool to form brown _______________.

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    Tutor: Siti Aizatie RamliChemistry Form 4

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    Chemical equation:

    GROUP 18

    The elements of Group 18 are: ____________ , ____________ , ____________ , ____________ ,____________ , and ____________ .

    Elements in Group 18 are also known as ____________________.

    The elements in Group 18 are _____________.

    Number of valence electron: ____.

    They exist as ______________.

    All elements in Group 18 are ______________ in water and do not conduct

    __________________.

    They have ______________ melting point and boiling point.

    They have ______________ density.

    As we go down Group 18;

    1. Atomic radius ______________.

    2. Van der walls force becomes ___________________.

    3. Density _____________ because the relative atomic mass ________________.

    Elements in Group 18 do not form compounds with other elements because they have

    _________ or __________ electronic configuration. Thus they do not ___________, ___________ ,

    or ___________ electrons with other elements.

    Characteristics across Period 3 elements.

    Elements in period 3 are __________, __________, __________, __________, __________,

    __________, __________, and __________.

    The oxides change from ___________ to _______________ to ____________ across the period.

    Atomic radius _____________ across the period because the proton numbers ___________

    from one element to the next across the period.

    Thus the electrostatic force of attraction between the nucleus and electrons become

    ___________. This cause the atomic radius to ____________ across the period.

    The electronegativity of elements ______________.

    The nature of metals change from _______________ to _________________ and finally to

    _______________ across the period.

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    Tutor: Siti Aizatie RamliChemistry Form 4

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    The melting point and boiling point _________________ from the left of the period to the

    middle of the period and then _______________ again.

    Characteristics of transition elements.

    1. Have more than one ______________________.

    2. Form ____________ compounds, e.g _______________ in green colour.

    3. Transition elements or its compound have ______________ properties, e.g. iron

    powder catalyse the reaction between N2 and H2 gases to form NH3.

    4. Form ___________ ions, e.g. CU2+ react with ammonia to form dark blue

    tetraamminecopper(II) complex ion.