Metal Reactivity & Halogens quiz

1. How many electrons can the first, second and third shells hold?

First 2, second 8, third 8

First 0, second 8, third 8

First 8, second 8, third 8

First 2, second 6, third 6

Question 1 of 23

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

XSO₄

Z

ZSO₄

X

Question 2 of 23

3. 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 2,8,8,1. 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 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 closer to the nucleus therefore the electron is more attracted by the nucleus. So potassium is more reactive than sodium

Question 3 of 23

4. Put these 3 alkali metals in order of reactivity, starting with the least reactive: sodium, rubidium, lithium

rubidium, sodium, lithium,

lithium, sodium, rubidium

sodium, lithium, rubidium

sodium, rubidium, lithium

Question 4 of 23

5. Are metal oxides acidic or basic?

Depends on conditions

Neutral

Acidic

Basic

Question 5 of 23

6. Explain, in terms of electrons, why isotopes have the same chemical properties

Isotopes have the same number of protons but a different number of neutrons

Isotopes are radioactive

Isotopes have the same number of electrons

Isotopes have different masses

Question 6 of 23

7. Explain how galvanising prevents rusting

Zinc is more reactive than iron. Zinc reacts with water instead of iron

The zinc coating protects the iron, preventing it from exposure to oxygen and water

Zinc is more reactive than iron. Zinc reacts with oxygen instead of iron

Zinc accepts excess electrons from the iron, preventing it from reacting

Question 7 of 23

8. 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 electrons in the outer shell

same number of electron shells

Question 8 of 23

9. How are elements arranged in the periodic table?

in order by atomic number

in order by size

in no particular order

in order by mass number

Question 9 of 23

10. Why would there be no reaction when iodine was added to sodium bromide solution?

Iodine is more reactive than bromine

Iodine is less reactive than bromine

Sodium is more reactive than iodine

Sodium is less reactive than iodine

Question 10 of 23

11. 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 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 and concentration of acid. The metals which bubble more are less 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.

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.

Question 11 of 23

12. Describe the test for chlorine gas

Burns with a squeaky pop

Turns moist litmus paper white (bleaches)

Turns damp red litmus paper blue

Relights a glowing splint

Question 12 of 23

13. 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 more 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 less reactive with decreasing atomic number.

Question 13 of 23

14. Which group of atoms has a full outer shell?

Group 0, the noble gases

Group 7, the halogens

Group 2, alkaline earth metals

Group 1, the alkali metals

Question 14 of 23

15. Explain in 2 different ways why rusting is described as an oxidation reaction

iron gains oxygen / iron loses electrons

water loses oxygen / iron gains electrons

water gains oxygen / iron loses electrons

oxygen loses electrons / iron gains oxygen

Question 15 of 23

16. Which is more reactive: iron, copper, magnesium or aluminium?

iron

aluminium

magnesium

copper

Question 16 of 23

17. Write the word equation for the formation of rust

iron + oxygen → hydrated iron (III) oxide

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

iron + oxygen → hydrated iron (II) oxide

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

Question 17 of 23

18. Where are non-metals found on the periodic table?

On the left, reaching across the middle

Only in the left hand column

Only on the bottom row

At the top right, plus hydrogen

Question 18 of 23

19. Complete the equation for the reaction by inserting the state symbols: 2Li(....) + 2H₂O(....) → 2LiOH(...) + H₂(....)

2Li(s) + 2H₂O(l) → 2LiOH(aq) + H₂(g)

2Li(s) + 2H₂O(l) → 2LiOH(s) + H₂(aq)

2Li(s) + 2H₂O(aq) → 2LiOH(s) + H₂(g)

2Li(s) + 2H₂O(aq) → 2LiOH(aq) + H₂(g)

Question 19 of 23

20. 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 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 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 closer to the nucleus, so the attraction is stronger, making it less reactive.

Question 20 of 23

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

hydrochloric acid + calcium → calcium chloride + hydrogen

hydrochloric acid + calcium → calcium hydrochloride + water

hydrochloric acid + calcium → calcium hydrochloride

hydrochloric acid + calcium → calcium chloride + water

Question 21 of 23

22. 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.

Sodium would bubble the least vigorously, showing it is least reactive. Lithium 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.

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

Question 22 of 23

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

yellow gas

Green gas

yellow liquid

green liquid

Question 23 of 23

Metal Reactivity & Halogens quiz

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