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Class 9 Chemistry Periodic Table And periodicity Of Properties


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Explain the contributions of Mendeleev for the arrangement of elements in his Periodic Table.
Explain the contributions of Mendeleev for the arrangement of elements in his Periodic Table.

ExplainthecontributionsofMendeleevforthearrangementofelementsinhisPeriodicTable.Explain the contributions of Mendeleev for the arrangement of elements in his Periodic Table.

Justify the statement bigger size atoms have more shielding effect thus low ionization energy.
Justify the statement bigger size atoms have more shielding effect thus low ionization energy.

Justifythestatementbiggersizeatomshavemoreshieldingeffectthuslowionizationenergy.Justify the statement bigger size atoms have more shielding effect thus low ionization energy.

6. According to Mosely the chemical properties of elements are the periodic function of their :(a) Atomic Size(b). Atomic Mass(c) Atomic Radius(d). Atomic Number
6. According to Mosely the chemical properties of elements are the periodic function of their :(a) Atomic Size(b). Atomic Mass(c) Atomic Radius(d). Atomic Number

6.AccordingtoMoselythechemicalpropertiesofelementsaretheperiodicfunctionoftheir:(a)AtomicSize(b).AtomicMass(c)AtomicRadius(d).AtomicNumber6. According to Mosely the chemical properties of elements are the periodic function of their :(a) Atomic Size(b). Atomic Mass(c) Atomic Radius(d). Atomic Number

4. Determine the location of families on periodic table.
4. Determine the location of families on periodic table.

4.Determinethelocationoffamiliesonperiodictable.4. Determine the location of families on periodic table.

What do you mean by blocks in a periodic table and why elements were placed in blocks?
What do you mean by blocks in a periodic table and why elements were placed in blocks?

Whatdoyoumeanbyblocksinaperiodictableandwhyelementswereplacedinblocks?What do you mean by blocks in a periodic table and why elements were placed in blocks?

4. Justify that periodicity of properties dependent upon number of protons in ar atom?
4. Justify that periodicity of properties dependent upon number of protons in ar atom?

4.Justifythatperiodicityofpropertiesdependentuponnumberofprotonsinaratom?4. Justify that periodicity of properties dependent upon number of protons in ar atom?

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