Topic 1.2- Key concepts Flashcards
1
Q
What is ionic bonding?
A
-Metal and non metal
-transfer electrons
-two ions
2
Q
What is a cation?
A
Positively charged atom
3
Q
What is an anion?
A
Negatively charged atom
4
Q
Which group become anions?
A
5,6,7
gain electrons
5
Q
Which groups become cations?
A
1,2,3
Loose electrons
6
Q
What is the structure of an ionic compound?
what holds them together
A
-Lattice
-Regular ion arrangement
-Held together by strong electrostatic forces of attraction between cation and anion
7
Q
What is a covelant bond?
A
Atoms share pairs of electrons
8
Q
What does covelant bond produce?
A
molecules
ionic bonds dont produce molecules
9
Q
What is the size of an atom?
A
10^-10
10
Q
What is the size of a small molecule?
A
10^-9
