Metal Reactivity & Halogens quiz

1. What are the elements in group 1 called?

Alkaline earth metals

Noble gases

Halogens

Alkali metals

Question 1 of 23

2. 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 electronic configuration

Same number of electrons in the inner shell

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.

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 3 of 23

4. 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 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

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 4 of 23

5. If a substance gains oxygen in a reaction how is the process described?

Reduction

Hydrolysis

Oxidation

Combustion

Question 5 of 23

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

Isotopes are radioactive

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

Isotopes have different masses

Isotopes have the same number of electrons

Question 6 of 23

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

Group 7, the halogens

Group 2, alkaline earth metals

Group 0, the noble gases

Group 1, the alkali metals

Question 7 of 23

8. Where are 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

Question 8 of 23

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

sulfuric acid + magnesium → magnesium sulfate + water

sulfuric acid + magnesium → magnesium sulfide + hydrogen

sulfuric acid + magnesium → magnesium sulfate + hydrogen

sulfuric acid + magnesium → magnesium sulfide + water

Question 9 of 23

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

Ammonia

Hydrogen

Carbon dioxide

Oxygen

Question 10 of 23

11. Which is less reactive: sodium or potassium?

Potassium

Depends on the temperature

Sodium

Depends on the pressure

Question 11 of 23

12. 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 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.

Question 12 of 23

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

magnesium

copper

iron

aluminium

Question 13 of 23

14. What is sacrificial protection?

Sacrificial protection is when a more reactive metal is connected to a less reactive metal. Only the more reactive metal corrodes, so protecting the less reactive metal

Sacrificial protection is when a more reactive metal is close to a less reactive metal. Only the more reactive metal corrodes, so protecting the less reactive metal

Sacrificial protection is when a more reactive metal is connected to a less reactive metal. Only the less reactive metal corrodes, so protecting the more reactive metal

Sacrificial protection is when a more reactive metal is close to a less reactive metal. Only the less reactive metal corrodes, so protecting the more reactive metal

Question 14 of 23

15. 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 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.

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 15 of 23

16. What type of reaction occurs if you put a chlorine with a solution of sodium bromide?

Decomposition

Displacement

Precipitation

Electrolysis

Question 16 of 23

17. Predict what colour and state is astatine at room temperature

black solid

yellow liquid

yellow solid

black gas

Question 17 of 23

18. What are the elements in group 7 called?

Noble gases

Chalcogens

Halogens

Alkali metals

Question 18 of 23

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

X

ZSO₄

Z

XSO₄

Question 19 of 23

20. Which are described as acidic: metal oxides or non-metal oxides?

Metal oxides

Neither

Depends on conditions

non-metal oxides

Question 20 of 23

21. 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 21 of 23

22. How many electrons in the outer shell of group 4 elements?

0

4

3

5

Question 22 of 23

23. Write the word equation for the formation of rust

iron + oxygen → hydrated iron (II) oxide

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

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

iron + oxygen → hydrated iron (III) oxide

Question 23 of 23

Metal Reactivity & Halogens quiz

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