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TGS Group 1 Exam Question JBI

Last updated over 5 years ago

8 questions

1

Question 1

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

1

1

Question 5

5.

1

Question 6

6.

1

3

Question 2

2.

Question 3

3.

Question 4

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.

Question 7

7.

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

Question 8

8.

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

represents a sodium atom

A

B

C

D

E

F

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

A

B

C

D

E

F