How much space does this amount of salt occupy?

The volume is 0.26 tbsp (3.85 mL), which can also be measured as 0.78 teaspoons, 0.26 tablespoons, or 0.016 cups.

What are the dimensions of the pile?

When poured into a loose pile, the salt is 1.42 in (3.61 cm) wide and 0.444 in (1.13 cm) tall.

The typical density is 1.3 g/mL, though it can range from 1.2 to 1.4 g/mL depending on how the salt is packed.

5 grams of table salt (fine) is a small amount that measures 0.176 oz (5 g). It is about 2 times the size of a marble when poured into a loose pile.

In kitchen measures

0.78 teaspoons

0.78 tsp · 0.26 tbsp · 0.016 cups

about 2 times the size of a marble

Table salt (fine) typically ranges 1.2–1.4 g/mL depending on how it's packed. A firmly packed scoop weighs more.

How much space does this amount of salt occupy?: The volume is 0.26 tbsp (3.85 mL), which can also be measured as 0.78 teaspoons, 0.26 tablespoons, or 0.016 cups.
What are the dimensions of the pile?: When poured into a loose pile, the salt is 1.42 in (3.61 cm) wide and 0.444 in (1.13 cm) tall.
How does the density affect the size?: The typical density is 1.3 g/mL, though it can range from 1.2 to 1.4 g/mL depending on how the salt is packed.