The fundamental ideas in Chemistry Flashcards
1
Q
Define “element”
A
A substance made up of only one type of atom.
2
Q
“Molecule”
A
Two or more atoms covalently bonded together.
3
Q
“Compound”
A
Two or more different types of atom chemically bonded together
4
Q
“Ion”
A
An atom or group of atoms that has gained or lost electrons.
5
Q
“Covalent bond”
A
The strong bond formed by sharing a pair of electrons.
6
Q
“Ionic bond”
A
The strong electrostatic attraction between oppositely charged ions.
7
Q
“Metallic bond”
A
The strong electrostatic attraction between a lattice of positive metal ions and a sea of delocalised electrons.
8
Q
“Giant structure”
A
Billions of atoms or ions bonded together
9
Q
“Simple molecular structure”
A
Molecules made up of a small number of atoms covalently bonded together with weaker intermolecular forces between them.
