Atomic Bonding (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
ShowHide
Practise the questions
11 questions from this quiz
How many electrons do atoms need in their outer shells (after the first shell) to be stable?
How many electrons do atoms need in their outer shells (after the first shell) to be stable?
8 electrons
What is the term for when atoms achieve 2 electrons in shell 1 and 8 in outer shells?
What is the term for when atoms achieve 2 electrons in shell 1 and 8 in outer shells?
Stable electron configuration
In solids, why can atoms not move freely?
In solids, why can atoms not move freely?
Strong bonds hold them in place
How do atoms behave in liquids?
How do atoms behave in liquids?
They roll over each other with ease
What happens in covalent bonding?
What happens in covalent bonding?
Atoms share electrons
Why are covalent bonds also called primary bonds?
Why are covalent bonds also called primary bonds?
They are very strong
What happens when an atom loses one or more electrons?
What happens when an atom loses one or more electrons?
It becomes positively charged
What happens when an atom gains electrons?
What happens when an atom gains electrons?
It becomes negatively charged
Why are ionic bonds called secondary bonds?
Why are ionic bonds called secondary bonds?
They are weaker than covalent bonds
What is the 'sea of delocalised electrons' in metallic bonding?
What is the 'sea of delocalised electrons' in metallic bonding?
Free-floating electrons in metal
Why can metals conduct electricity and heat?
Why can metals conduct electricity and heat?
They have delocalised electrons