Metal Reactivity & Halogens quiz

1. 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 electrons in the inner shell

same number of electron shells

same number of electrons in the outer shell

Question 1 of 23

2. Write the electronic configuration of potassium

2,8,9

8,8,3

2,8,8,2

2,8,8,1

Question 2 of 23

3. 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?

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 least vigorously, showing it is least reactive. Potassium would give off a lilac 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 3 of 23

4. Identify the species that is reduced in the following reaction. Explain your answer: 2Br⁻ + Cl₂ → 2Cl⁻ + Br₂

Chlorine. Gains electrons

Chloride. Loses electrons

Bromide. Loses electrons

Chloride. Gains electrons

Question 4 of 23

5. How are elements arranged in the periodic table?

in order by mass number

in order by atomic number

in no particular order

in order by size

Question 5 of 23

6.

If 2 similar test tubes contain acid, and a different metal sample is added to each, how might you tell which metal is more reactive?

The test tube with the more reactive metal will turn cloudy faster

Fewer bubbles appear in the test tube with the more reactive metal

The metal that disappears fastest is the less reactive metal

More bubbles will appear faster in the test tube with the more reactive metal

Question 6 of 23

7. Where are the transition metals on the Periodic Table?

Left hand colunm

In the middle

Top left corner

Scattered across it

Question 7 of 23

8. Explain why bromine is less reactive than chlorine

Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is closer to the nucleus, so the attraction is stronger, making it less reactive.

Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is further from the nucleus, so the attraction is weaker, making it less reactive.

Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is further from the nucleus, so the attraction is stronger, making it less reactive.

Both chlorine and bromine react by their nucleus attracting an electron to fill their outer shell. The outer shell of bromine is closer to the nucleus, so the attraction is weaker, making it less reactive.

Question 8 of 23

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

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

Astatine is more reactive because group 7 elements get more reactive with increasing 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 9 of 23

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

hydrochloric acid + calcium → calcium hydrochloride + water

hydrochloric acid + calcium → calcium chloride + water

hydrochloric acid + calcium → calcium hydrochloride

hydrochloric acid + calcium → calcium chloride + hydrogen

Question 10 of 23

11. 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 the same number of protons

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 have different numbers 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.)

Question 11 of 23

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

X

Z

XSO₄

ZSO₄

Question 12 of 23

13. What is galvanising?

When zinc is layered inside a less reactive metal to prevent that metal from corroding

When iron is layered inside a less reactive metal to prevent that metal from corroding

When zinc is used to coat a less reactive metal to prevent that metal from corroding

When iron is used to coat a less reactive metal to prevent that metal from corroding

Question 13 of 23

14. Put these 3 alkali metals in order of reactivity, starting with the most reactive: potassium, francium, lithium

francium, potassium, lithium

lithium, potassium, francium

francium, lithium, potassium

potassium, lithium, francium

Question 14 of 23

15. State 5 observations when sodium reacts with water

1) fizzing occurs 2) sodium moves around 3) sodium goes white 4) sodium disappears 5) sodium sinks

1) fizzing occurs 2) sodium moves around 3) sodium goes white 4) sodium disappears 5) sodium floats

1) fizzing occurs 2) sodium moves around 3) sodium melts 4) sodium disappears 5) sodium floats

1) fizzing occurs 2) sodium moves around 3) sodium melts 4) sodium disappears 5) sodium sinks

Question 15 of 23

16. Describe how reactivity changes as you descend group 7

decreases

increases up to bromine, then decreases again

increases

remains the same

Question 16 of 23

17. 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 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 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 2,1. 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 closer to the nucleus therefore the electron is more attracted by the nucleus. So potassium is more reactive than sodium

Question 17 of 23

18. Write the word equation for the formation of rust

iron + oxygen + water → hydrated iron (II) oxide

iron + oxygen + water → hydrated iron (III) oxide

iron + oxygen → hydrated iron (II) oxide

iron + oxygen → hydrated iron (III) oxide

Question 18 of 23

19. If an element doesn't conducts electricity, is it a metal or a non-metal?

Metal

Depends on conditions

Non-Metal

Either metal or non-metal

Question 19 of 23

20. Which is more reactive: zinc, iron, lead or copper

lead

iron

copper

zinc

Question 20 of 23

21. What colour and state is bromine at room temperature?

Orange liquid

Red-brown liquid

Brown gas

Grey solid

Question 21 of 23

22. What are the elements in group 0 called?

Light gases

Alkali metals

Noble gases

Halogens

Question 22 of 23

23. Describe the test for carbon dioxide gas

Bubble the gas through limewater and see if it goes cloudy

Turns damp red litmus paper blue

Relights a glowing splint

Turns moist litmus paper white (bleaches)

Question 23 of 23

Metal Reactivity & Halogens quiz

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