When we say a compound is highly directional, we're usually talking about the directionality of the bonds between its atoms, meaning:

The bonds form at specific angles and in specific directions between atoms, not just randomly or evenly in all direct...

CHARACTERISTICS OF IONIC COMPOUNDS

1. Ionic bonds or compounds are only formed between atoms of group 1, 2 and 3, which are metals, and atoms of 5, 6 and 7, which are non-metals.

2. When an ionic compound is dissolved in water, t...

What does it mean for a molecule to have a definite shape???

When we say something has a definite shape, it means:

It keeps it's shape and does not change unless an external force is applied.

In other words:

The object does not fl...