IONS and valent

Question 1

LEDS

Answer 1

• no side can have more than two dots
• each side gets 1 dot before doubling up (AUFBAUrule )

Question 2

bonding and lone pairs

Answer 2

1. bonding - electrons that collided / meeting point of the 2 atoms
2. electrons that did not meet with the other atom

Question 3

ionic

Answer 3

form between non-m and metal
- very stable
- has higher boiling and melting points
- Conducts electricity when
MOLTEN or in SOLUTION(aq)
-Form crystalline structures

The atoms (ions) in ionic compound show strong attractions due to
electrostatic force and require more energy to break

Question 3

ionic

Answer 3

form between non-m and metal
- very stable
- has higher boiling and melting points
- Conducts electricity when
MOLTEN or in SOLUTION(aq)
-Form crystalline structures

The atoms (ions) in ionic compound show strong attractions due to
electrostatic force and require more energy to break

Question 4

covalent

Answer 4

non-non
- intermolecular forces are very weak
- causing molecules to s can easily separate in small
amount of energy
low boiling point and melting point for the covalent

Question 5

POLAR

Answer 5

in which the atoms have an
unequal attraction for electrons
and so the sharing is unequal

Question 6

non polar

Answer 6

electrons are shared
equally between the two atoms.

Question 7

HOW DETERMINE

Answer 7

ELECTRONEGATIVITY
DIFFERENCE
0 < 0.4 Nonpolar
0.5 – 1.9 Polar
>2.0 Ionic