Ionic, covalent and metallic bond

Which element is in Group 1, Period 4.

Which numbers are added togoter to give the nucleon number of an atom ?

Answer: number of protons + number of ........................................

Ionic compound ​ ​ (a)   , covalent compound​ (b)   ​

• CuO
• HCl

Draw the dot-and-cross diagram for HCl

Answer explanation

Metallic bonding is

the​ (a)    attraction between ​ (b)     ​ (c)    and ​ (d)    ​ (e)  

• electrostatic
• positive
• ions
• delocalised
• electrons

The .........................shell electrons of each atom in metals are delocalised.

Metals have high melting point,

because there are strong ................................ bond.

Metals can conduct Electricity

because there are ................................ electrons.

Metals are .......................... and ................................

because the layers of metal cations can slide over each other.

An alloy is a mixture of a​ (a)   with another ​ (b)   , usually another ​ (c)  

• metal
• element
• non-metal
• compound
• ionic bond