Metal Reactivity & Halogens quiz

1. State 6 observations when potassium reacts with water

1) fizzing occurs 2) potassium moves around 3) potassium melts 4) lilac flame is seen 5) potassium disappears 6) potassium floats

1) fizzing occurs 2) potassium moves around 3) potassium goes white 4) orange flame is seen 5) potassium disappears 6) potassium floats

1) fizzing occurs 2) potassium moves around 3) potassium goes white 4) lilac flame is seen 5) potassium disappears 6) potassium floats

1) fizzing occurs 2) potassium moves around 3) potassium melts 4) orange flame is seen 5) potassium disappears 6) potassium floats

Question 1 of 23

2. Describe the test for chlorine gas

Burns with a squeaky pop

Turns damp red litmus paper blue

Turns moist litmus paper white (bleaches)

Relights a glowing splint

Question 2 of 23

3. If an element conducts electricity, is it typically a metal or a non-metal?

Metal

Either

Non-metal

Depends on conditions

Question 3 of 23

4. Suggest how the reactivity of astatine compares to that of iodine. Explain your answer.

Astatine is more reactive because group 7 elements get more reactive with increasing atomic number.

Astatine is more reactive because group 7 elements get less reactive with decreasing atomic number.

Astatine is less reactive because group 7 elements get less reactive with increasing atomic number.

Astatine is more reactive because group 7 elements get more reactive with decreasing atomic number.

Question 4 of 23

5. Why do elements in the same group of the periodic table have similar chemical properties?

Elements in the same group of the periodic table have different numbers of electrons in their outer shell

Elements in the same group of the periodic table have the same number of electrons in their outer shell

Elements in the same group of the periodic table are all the same type of element (metal, non-metal etc.)

Elements in the same group of the periodic table have the same number of protons

Question 5 of 23

6. Explain, by referring to the electronic configurations, why fluorine is more reactive than chlorine

Fluorine has the electronic configuration 2,8,7 and chlorine has 2,7. An extra outer electron is gained more easily by chlorine. This is because the outer shell is closer to the nucleus, so an extra electron is attracted more strongly. So fluorine is more reactive than chlorine

Fluorine has the electronic configuration 2,7 and chlorine has 2,8,7. An extra outer electron is gained more easily by chlorine. This is because the outer shell is closer to the nucleus, so an extra electron is attracted more strongly. So fluorine is more reactive than chlorine

Fluorine has the electronic configuration 2,7 and chlorine has 2,8,7. An extra outer electron is gained more easily by fluorine. This is because the outer shell is closer to the nucleus, so an extra electron is attracted more strongly. So fluorine is more reactive than chlorine

Fluorine has the electronic configuration 2,8,7 and chlorine has 2,7. An extra outer electron is gained more easily by fluorine. This is because the outer shell is closer to the nucleus, so an extra electron is attracted more strongly. So fluorine is more reactive than chlorine

Question 6 of 23

7. Write the word equation to represent the reaction between hydrochloric acid and calcium

hydrochloric acid + calcium → calcium chloride + water

hydrochloric acid + calcium → calcium hydrochloride + water

hydrochloric acid + calcium → calcium chloride + hydrogen

hydrochloric acid + calcium → calcium hydrochloride

Question 7 of 23

8. Which is more reactive: silver, gold, copper or iron?

gold

silver

iron

copper

Question 8 of 23

9. An experiment investigates which of metals X and Z is more reactive. The result is X + ZSO₄ → XSO₄ + Z. Which metal is more reactive?

Z

X

XSO₄

ZSO₄

Question 9 of 23

10. On the Periodic table what is the meaning of the word Group?

A Group is a collection of similar elements

A Group is a horizontal row of elements

A Group is collection of elements with the same number of electron shells

A Group is a vertical column of similar elements

Question 10 of 23

11. On the Periodic Table what is the meaning of the word Period? What does that tell us about the electron configuration of the atom?

Same electronic configuration

same number of electron shells

same number of electrons in the outer shell

Same number of electrons in the inner shell

Question 11 of 23

12. What is special about the elements in group 0?

They are all diatomic

They are all coloured gases

They have the same number of electrons

They are very unreactive (because they have full outer electron shells)

Question 12 of 23

13. Describe the conditions under which iron rusts

oxygen and water

water and carbon dioxide

carbon dioxide only

oxygen only

Question 13 of 23

14. Describe how the reaction of hydrochloric acid and various metals could be used to determine the relative reactivity of those metals

Add the various metals to different test tubes containing the same volume and concentration of acid. The metals which bubble more are less reactive.

Add the various metals to different test tubes containing the same volume but different concentrations of acid. The metals which bubble more are less reactive.

Add the various metals to different test tubes containing the same volume but different concentrations of acid. The metals which bubble more are more reactive.

Add the various metals to different test tubes containing the same volume and concentration of acid. The metals which bubble more are more reactive.

Question 14 of 23

15. Which is more reactive: sodium or francium?

Depends on the pressure

Sodium

Depends on the temperature

Francium

Question 15 of 23

16. Identify the element that is displaced in this reaction: 2HBr + Cl₂ → 2HCl + Br₂

Bromine

Bromide

Hydrogen

Chloride

Question 16 of 23

17. Where are metals found on the periodic table?

Only on the bottom row

At the top right

On the left, reaching across the middle

Only in the left hand column

Question 17 of 23

18. How many electrons in a calcium atom?

19

40

20

41

Question 18 of 23

19. Explain, by referring to the electronic configurations, why potassium is more reactive than sodium.

Sodium has the electronic configuration 2,8,1 and potassium has 2,1. The outer electron lost from potassium is closer to the nucleus therefore the electron is more attracted by the nucleus. So potassium is more reactive than sodium

Sodium has the electronic configuration 2,8,1 and potassium has 2,8,8,1. The outer electron lost from potassium is further from the nucleus therefore the electron is less attracted by the nucleus. So potassium is more reactive than sodium

Sodium has the electronic configuration 2,8,1 and potassium has 2,8,8,1. The outer electron lost from potassium is closer to the nucleus therefore the electron is more attracted by the nucleus. So potassium is more reactive than sodium

Sodium has the electronic configuration 2,8,1 and potassium has 2,1. The outer electron lost from potassium is further from the nucleus therefore the electron is less attracted by the nucleus. So potassium is more reactive than sodium

Question 19 of 23

20. If pieces of lithium, potassium and sodium were added to water, how could observations of the different reactions indicate the relative reactivity of those 3 metals?

Lithium would bubble the least vigorously, showing it is least reactive. Potassium would give off a lilac flame, showing it is most reactive.

Sodium would bubble the least vigorously, showing it is least reactive. Potassium would give off a orange flame, showing it is most reactive.

Lithium would bubble the most vigorously, showing it is most reactive. Potassium would give off a lilac flame, showing it is least reactive.

Sodium would bubble the least vigorously, showing it is least reactive. Lithium would give off a orange flame, showing it is most reactive.

Question 20 of 23

21. What is the colour and physical state of chlorine at room temperature?

yellow liquid

green liquid

yellow gas

Green gas

Question 21 of 23

22. State the methods of how the rusting of iron may be prevented

grease, oil, submerging, paint, vacuum sealing and galvanising

grease, submerging, paint, plastic and galvanising

grease, oil, paint, plastic and galvanising

grease, oil, paint, vacuum sealing and galvanising

Question 22 of 23

23. State the meaning of the term reducing agent

A substance that gives oxygen or removes electrons (it is itself reduced)

A substance that gives electrons or removes oxygen (it is itself reduced)

A substance that takes oxygen or gives electrons (it is itself oxidised)

A substance that gives oxygen or removes electrons (it is itself oxidised)

Question 23 of 23

Metal Reactivity & Halogens quiz

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