1.1. Chemistry for life. - Key words

Question 1

Anion

Answer 1

-ve ion formed when an atoms gains e-

Question 2

Cation

Answer 2

+ve ion formed when atoms lose e-

Question 3

Ionic bonds

Answer 3

Attractive forces between oppositely charged ions

Question 4

Covalent bonds

Answer 4

Formed when atoms share e-

Question 5

Dipole

Answer 5

Separation of charge in a molecule when the e- in covalent bonding aren’t evenly shared

Question 6

Polar molecule

Answer 6

Molecule containing a dipole

Question 7

Hydrogen bonding

Answer 7

Weak electrostatic intermolecular bonds formed between polar molecules containing at least 1 H atom.