WorksheetsDative and metallic bond
Total questions: 10
Worksheet time: 5mins
Ammonium ion (NH4+) is an example for
Covalent compound
Coordinate compound
Ionic compound
Metallic compound
Coordinates bonds are also called ..
ionic bonds
covalent bonds
dative bonds
metallic bonds
What is the meaning of Dative Bond?
a covalent bond between two atoms where one of the atoms provides both electrons that form the bond.
a covalent bond between two atoms where both of the atoms provides both electrons that form the bond.
same with an ionic bond
not exist
Which type of chemical bond is formed in Aluminum wire?
Metallic
Ionic
Covalent
Dative
Which of the following metal has the strongest metallic bonding?
Sodium
Iron
Calcium
Potassium
What is the basis of a metallic bond?
The attraction of neutral metal atoms.
The attraction between positive metal ions and interlocking electrons.
The attraction between protons and neutrons.
The attraction between positive metal ions and free floating electrons.
Electrons that are free to move in metals are called (a) electrons
Why do metals have high melting points?
They don't
All the electrons become delocalised
The negatively charged electrons act as a glue to hold the positively charged ions together.
Why do metals conduct electricity?
They are shiny
The electrons are delocalised and able to move
The electrons are held tightly within the lattice
The electrons are shared between two metal ions
Why does the melting point of metals increase across period 3, from Sodium (Na) to Aluminium (AI)?
Size of atoms gets smaller
Increased space between the valence electrons in the "sea"
Attraction force between nuclei and free electron increases
Increased number of valence electrons contributed to the "sea"
