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WorksheetsBonding and Structure of First 20 Elements
Total questions: 10
Worksheet time: 5mins
Which of the following elements exists as discrete covalent molecules under standard conditions?
Neon
Phosphorus
Aluminium
Silicon
Which type of bonding is found in elements such as magnesium and aluminium?
Ionic bonding
Covalent bonding
Metallic bonding
Van der Waals bonding
What type of structure does diamond have?
Monatomic
Discrete covalent molecular
Covalent network
Metallic lattice
Which of the following elements exists as a monatomic gas at room temperature?
Nitrogen
Fluorine
Argon
Oxygen
Which element forms a covalent network structure similar to silicon?
Sulfur
Boron
Calcium
Chlorine
Which statement correctly describes the bonding in sodium?
Positive ions in a sea of delocalised electrons
Shared pair of electrons between atoms
Attraction between positive and negative ions
Overlapping p orbitals forming delocalised π-bonds
Which of the following elements exists as diatomic molecules at room temperature?
Helium
Neon
Hydrogen
Boron
Which element from the first 20 has a giant metallic lattice structure and is a good conductor of electricity?
Carbon
Aluminium
Silicon
Sulfur
Which property is typical of a substance with a covalent network structure?
Low melting point
Poor electrical conductivity when molten
Soluble in water
Very high melting point
Which of the following describes the structure of phosphorus under standard conditions?
Covalent network
Discrete covalent molecule
Monatomic gas
Ionic lattice
