Alkali Metals - Assessment

1.

Multiple Choice

20 sec

1 pt

Group IA has 7 elements member, but for Alkali only has 6 elements member

Incorrect

Correct

2.

Multiple Choice

30 sec

1 pt

Which alkali metal is most reactive out of the following

rubidium

potassium

sodium

lithium

3.

Multiple Choice

30 sec

1 pt

How many electrons do the alkali metals have in their outer shell?

1

2

8

7

4.

Multiple Choice

30 sec

1 pt

What happens to the atomic radius of the alkali metals as you move down the group?

increase

decrease

5.

Multiple Choice

30 sec

1 pt

Which alkali metal has the symbol Cs

Caesium

Ceasium

Calcium

Sodium

6.

Multiple Choice

30 sec

1 pt

Is hydrogen an alkali metal?

no

yes

maybe

7.

Multiple Choice

20 sec

1 pt

What happens to the melting point of the alkali metals as you move down the group?

decreases

increases

8.

Multiple Choice

30 sec

1 pt

Which gas is released when the alkali metals react with water?

hydrogen

oxygen

hydroxide

carbon dioxide

9.

Multiple Choice

30 sec

1 pt

How does a group 1 metal atom form an ion?

lose 1 electron

lose 2 electrons

gain 1 electron

gain 2 electrons

10.

Multiple Choice

30 sec

1 pt

What is the charge of a group 1 metal ion?

1+

2+

1-

2-

11.

Multiple Choice

30 sec

1 pt

Which of the following is NOT a property of group 1 metals?

More dense than water

less dense than water

low melting point

soft

12.

Multiple Choice

20 sec

1 pt

Which alkali metal has the electron configuration 2.1?

lithium

potassium

sodium

rubidium

13.

Multiple Choice

30 sec

1 pt

Which alkali metal is the least reactive?

lithium

sodium

potassium

rubidium

14.

Multiple Choice

20 sec

1 pt

What is the formula of a group 1 metal oxide?

M₂O

MO

MO₂

Mo

15.

Multiple Choice

30 sec

1 pt

How many protons does a sodium atom have?

11

23

12

16.

Multiple Choice

30 sec

1 pt

How many electrons does a sodium atom have?>

11

23

12

17.

Multiple Choice

20 sec

1 pt

How many electrons does a sodium ION have?

10

11

23

12

18.

Multiple Choice

20 sec

1 pt

Which alkali metal has the lowest natural abundance?

Francium

Rubidium

Potassium

Sodium

19.

Multiple Choice

20 sec

1 pt

It has yellow color if you conduct flame test to this element. This element is ...

Lithium

Sodium

Potassium

Rubidium

20.

Multiple Choice

20 sec

1 pt

Which elements that have most abundant in the earth?

Lithium and sodium

Sodium and Potassium

Potassium and Rubidium

Rubidium and Cesium

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