The mass of aluminium foil is calculated as follows
mass = density x volume
density = 2.70 g/cm^3
volume 54 cm^3
mass of aluminium foil is therefore = 2.70 g/cm^3 x 54 cm^3 =145.8 grams
cm^3 cancel out each other
Whats do you want to know?
Answer:
In first shell 2 electrons are present and 7 electrons are present in last shell
Explanation:
Answer:
carbon
Explanation:
Atomic radius represents the distance from the nucleus to the outer shell of an element.
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- a person or thing that precipitates an event.