Chemical Bonds (Grade 11 NSC Matric Physical Sciences): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Chemical bonds
Chemical bonds
Forces holding atoms together in compounds
Why atoms bond
Why atoms bond
To achieve stable electron arrangement like noble gases
Valence electrons
Valence electrons
Electrons in outermost energy level, involved in bonding
Bond length
Bond length
Point where forces balanced, energy at minimum
Covalent bond
Covalent bond
Bond formed when pairs of electrons shared between atoms
Lewis diagrams
Lewis diagrams
Use dots to represent valence electrons around symbols
Lone pair
Lone pair
Unshared electron pair belonging to a specific atom
Dative covalent bond
Dative covalent bond
Both electrons in shared pair come from same atom
Bond strength order
Bond strength order
Single weakest, double stronger, triple strongest
Why helium doesn't bond
Why helium doesn't bond
Already has filled outer shell, stable as single atoms
