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This quiz contains 19 questions from a mix of 1 subtopics.

Magnesium loses electrons to become an ion. Complete the equation below:


 âž” Mg2+ + e-

Mg
2

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What is the correct equation for the formation of a bromide ion from a bromine atom?

Br  âž” Br- + 2e-

Br + 2e-  âž” Br2-

Br + e-  âž” Br-

Br  âž” Br- + e-

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Atoms which need to gain or lose only 1-2 electrons are likely to become ions, compared to those which need to gain or lose 3-4. This is because gaining or losing electrons requires a lot of .

more
energy

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2

Ions with opposite charges will each other. This force of attraction between oppositely charged ions forms an bond. 

attract
ionic

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2

The group 1 metal potassium reacts with the group 7 halogen iodine. 

Which atom receives an electron?

iodine

potassium

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What is the correct description of how a lithium atom becomes a lithium ion

lithium loses one electron to become a negatively charged ion

lithium gains one electron to become a negatively charged ion

lithium gains one electron to become a positively charged ion

lithium loses one electron to become a positively charged ion

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Atoms can g or l electrons to become charged particles called i.

ain
ose
ons

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3

What is the chemical formula for the compound calcium sulfate?

CaSO4

CaSO42+

Ca(SO4)2

Ca2SO4

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What is the correct formula of a nitrate ion?

NO3+

NO3

N3-

NO3-

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Select the correct formula for the ionic compound potassium chloride:

NaCl

K2Cl

KCl2

KCl

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Ionic structures involve many ions bonded together via bonds. The solid arranges itself into a crystal structure known as a g i l.

ionic
iant
onic
attice

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4

Metals normally form ions which have a charge, while non-metals form ions with a charge. Ions are attracted to other ions with the opposite charge, due to forces. 

positive
negative
electrostatic

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3

Draw a dot and cross diagram to show the ionic bonding between bromine and calcium in the compound calcium bromide (only draw the outermost electrons).

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3

What is the correct formula for ammonium carbonate?

NH4(CO3)2

(NH4)2CO3

NH3CO3

NH4CO3

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What is the correct formula for iron(III) hydroxide?

Fe3OH

Fe(OH)3

Fe3(OH)3

FeOH3

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Ionic compounds have relatively melting and boiling points.  This is because ionic bonds are very , and a high amount of is required to break the bonds. 

high
strong
energy

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3

Why can ionic compounds only conduct electricity when in the liquid or aqueous states?

solid ionic compounds do not contain charged particles

the delocalised electrons are free to move and carry charge

water is required to conduct electricity 

the ions are free to move and carry charge

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Ionic compounds have high melting points due to the strong forces of attraction between oppositely-charged .

electrostatic
ions

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Why do ionic substances have high melting and boiling points?

a lot of energy is needed to overcome the strong electrostatic attraction between oppositely charged ions

a lot of energy is needed to overcome the strong covalent bonds between atoms

a lot of energy is needed to overcome the strong electrostatic attraction between metal cations and delocalised electrons

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