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C2.7 Alkali Metals assignment

Sidst opdateret about 1 month ago

15 Spørgsmål

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7

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Spørgsmål 1

1.

Draw an element with 3 electrons (you may not need all the shells)

Spørgsmål 2

2.

Draw an element with 11 electrons (you may not need all the shells)

Spørgsmål 3

3.

Draw an element with 19 electrons (you may not need all the shells)

Spørgsmål 4

4.

Use the words below in order to fill in the blanks in the paragraph below:

Hydrogen Soft Violently Very Hydroxide More Down

Alkali metals are in group 1 of the periodic table. Unlike other metals, they are and are easy to cut. They are reactive and therefore need to be stored in oil. They will react with water, producing a metal and gas. The further the group the reactive the metal is.

Spørgsmål 5

5.

Complete the equations to represent the reaction of alkali metals and water below:

Lithium + Water → Lithium hydroxide +

Spørgsmål 6

6.

Complete the equations to represent the reaction of alkali metals and water below:

Sodium + Water → Sodium +

Spørgsmål 7

7.

Complete the equations to represent the reaction of alkali metals and water below:

Potassium + Water → +

Spørgsmål 8

8.

Complete the equations to represent the reaction of alkali metals and water below:

Rubidium + Water → +

Spørgsmål 9

9.

Complete the equations to represent the reaction of alkali metals and water below:

Caesium + Water → +

Spørgsmål 10

10.

Complete the equations to represent the reaction of alkali metals and water below:

Francium + Water → +

Spørgsmål 11

11.

What is meant by the term trend?

Spørgsmål 12

12.

Potassium and sodium are in the same group because …

Spørgsmål 13

13.

Potassium and sodium are in the same group, but ……

Spørgsmål 14

14.

Potassium and sodium are in the same group, so ……

Spørgsmål 15

15.

Sodium is more reactive than lithium because ……