Metal Reactivity & Halogens quiz

1.

Explain, in terms of the arrangement of electrons in its atoms, why neon is very unreactive

Neon has 8 electrons in the outer shell, so it is full. Therefore it does not easily gain or lose electrons

Neon has an even number of electrons so it does not need to form bonds

Neon has the same number of electrons and protons so it is unreactive

Neon is a noble gas

Question 1 of 23

2. 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 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.)

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

Question 2 of 23

3. Describe how reactivity changes as you descend group 7

remains the same

decreases

increases up to bromine, then decreases again

increases

Question 3 of 23

4. How are elements arranged in the periodic table?

in order by mass number

in no particular order

in order by atomic number

in order by size

Question 4 of 23

5. Write the word equation to represent the reaction between sulfuric acid and magnesium

sulfuric acid + magnesium → magnesium sulfate + water

sulfuric acid + magnesium → magnesium sulfide + water

sulfuric acid + magnesium → magnesium sulfide + hydrogen

sulfuric acid + magnesium → magnesium sulfate + hydrogen

Question 5 of 23

6. What are the elements in group 1 called?

Noble gases

Alkali metals

Halogens

Alkaline earth metals

Question 6 of 23

7. Which is more reactive: lithium, magnesium, silver or calcium?

lithium

silver

calcium

magnesium

Question 7 of 23

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

Top left corner

Scattered across it

In the middle

Left hand colunm

Question 8 of 23

9. 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 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.

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.

Question 9 of 23

10. 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 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.

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.

Question 10 of 23

11. Describe an experiment to show that iron rusts quicker in salt water than rain water

1) Set up tubes containing iron in rain water and in salt water. 2) Set up control tube with iron and no water. 3) record mass of tubes. 4) leave tubes for same length of time. 5) measure mass change of tube. 6) repeat experiment

1) Set up tubes containing iron in rain water and in salt water. 2) Set up control tube with iron and salt water. 3) record mass of tubes. 4) leave tubes for same length of time. 5) measure mass change of tube. 6) repeat experiment

1) Set up tubes containing iron in rain water and in salt water. 2) Set up control tube with iron and no water. 3) record mass of nails. 4) leave tubes for same length of time. 5) measure mass change of nail. 6) repeat experiment

1) Set up tubes containing iron in rain water and in salt water. 2) Set up control tube with iron and salt water. 3) record mass of nails. 4) leave tubes for same length of time. 5) measure mass change of nail. 6) repeat experiment

Question 11 of 23

12. What are the elements in group 7 called?

Halogens

Chalcogens

Alkali metals

Noble gases

Question 12 of 23

13. 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

XSO₄

Z

ZSO₄

Question 13 of 23

14. Explain, by referring to the electronic configurations, why lithium is less reactive than sodium.

Sodium has the electronic configuration 2,8,1 and lithium has 2,8,8,1. The outer electron in lithium is less attracted to the nucleus than in sodium because it is further away. So lithium is more reactive than sodium

Sodium has the electronic configuration 2,8,1 and lithium has 2,8,8,1. The outer electron in lithium is more attracted to the nucleus than in sodium because it is further away. So sodium is more reactive than lithium

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

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

Question 14 of 23

15. A gas is bubbled through limewater and the limewater goes cloudy. Identify the gas.

Hydrogen

Carbon dioxide

Oxygen

Ammonia

Question 15 of 23

16. 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. 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.

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

Question 16 of 23

17. State the meaning of the term oxidising agent

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

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

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

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

Question 17 of 23

18. What is galvanising?

When zinc is layered inside 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

When zinc is used to coat 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

Question 18 of 23

19. Write the electronic configuration of argon

2,8,6

2,8,8

8,8,2

8,8,8

Question 19 of 23

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

sodium, lithium, rubidium

rubidium, sodium, lithium,

lithium, sodium, rubidium

sodium, rubidium, lithium

Question 20 of 23

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

Depends on conditions

Non-Metal

Metal

Either metal or non-metal

Question 21 of 23

22. Suggest how the reactivity of fluorine compares to chlorine

Fluorine is less reactive than chlorine as it is more stable as an element

Fluorine is more reactive than chlorine because it has a lower boiling point

Fluorine is less reactive than chlorine because it is more volatile

Fluorine is more reactive than chlorine as it is higher in the group.

Question 22 of 23

23. On the Periodic table what is the meaning of the word Group? What does that tell us about the electron configuration of the atom?

same number of electrons in the outer shell

Same number of electron shells

Same number of electrons in the inner shell

Same electronic configuration

Question 23 of 23

Metal Reactivity & Halogens quiz

Metal Reactivity & Halogens quiz

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