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TGS Group 1 Exam Question JBI

Last updated over 5 years ago

8 Nsɛmmisa

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Sodium and potassium are both in Group 1 of the Periodic Table.
(a) Explain, by reference to their electronic structures, why both elements are placed in Group 1.

1

1

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2.

represents a sodium atom

A

B

C

D

E

F

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

represents a sodium ion, ........

A

B

C

D

E

F

1

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4.

Sodium and potassium both react with cold water.
(i) The word equation represents the reaction of sodium with water.
sodium + water → sodium hydroxide + hydrogen
Complete and balance the symbol equation for this reaction.

1

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5.

1

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6.

1

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7.

How does the reactivity of potassium with water differ from that of sodium with water?

3

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8.

Explain this difference in reactivity by reference to the electronic structures of the potassium and sodium atoms.