$CATEGORY: Science - Khan Academy/3.Metals and Non-metals/3.Metals and Non-metals--How do Metals and Non MetalsReact?


//Multiple Choice

What is the nature of the bond formed between a metal and a non-metal?
{
~ Covalent bond
= Ionic bond
~ Metallic bond
~ Hydrogen bond
}

Which of the following compounds contains an ionic bond?
{
~ H₂O
= NaCl
~ CH₄
~ CO₂
}

In an ionic bond, the metal typically __________ electrons.
{
~ Shares
= Donates
~ Gains
~ Breaks
}

Which of the following is NOT a property of ionic compounds?
{
~ High melting points
~ Conduct electricity in molten state
= Low solubility in water
~ Solid at room temperature
}

What happens to the electrons in the formation of NaCl?
{
= Sodium loses an electron, chlorine gains an electron.
~ Sodium gains an electron, chlorine loses an electron.
~ Both sodium and chlorine share electrons.
~ Electrons are neither gained nor lost.
}

//True or False

Ionic bonds are formed by the sharing of electrons between metals and non-metals. {F}

The cation in NaCl is sodium. {T}

Ionic compounds generally have high melting and boiling points. {T}

Ionic compounds are insoluble in water. {F}

Non-metals lose electrons to form ionic bonds. {F}

//Fill in the blanks

In ionic bonding, a metal __________ electrons to become a cation.
{
~ Gains
= Loses
~ Shares
}

Chlorine becomes a __________ ion by gaining an electron in ionic bonding.
{
~ Positive
= Negative
~ Neutral
}

In ionic compounds, the electrostatic force of attraction between ions is called a __________ bond.
{
~ Covalent
= Ionic
~ Metallic
}

The ionic compound formed by the reaction of magnesium and oxygen is __________.
{
~ MgCl₂
= MgO
~ Mg(OH)₂
}

Ionic compounds conduct electricity in their __________ state.
{
~ Solid
= Liquid
~ Gaseous
}

//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Sodium + Chlorine -> NaCl (Ionic bond) 
=Magnesium + Oxygen -> MgO (Ionic bond)
=Calcium + Chlorine -> CaCl₂ (Ionic bond)
=Metals in ionic bonding -> Lose electrons (Cations)
=Non-metals in ionic bonding -> Gain electrons (Anions)
}


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