15 because atomic no. is the number of protons
Answer:
Bromine (Br)
Explanation:
Im assuming thats the answer you are looking for since you didnt include any options :,)
Mass = 5 g
volume = 20 cm³
density = mass / volume
therefore:
D = m / V
D = 5 / 20
D = 0.25 g/cm³
Unicellular
multicultural is usually found in loving things like plants or animals
A reaction in which one reactant undergoes oxidation whereas the other gets reduced during the course of reaction are termed as oxidation-reduction reactions or redox reactions