Answer:
An atom of fluorine has the atomic number 9, and its mass number is 19 amu. Which of the following shows a neutral atom of fluorine? 16 protons and 14 electrons.
Explanation:
ITs 16 protins and 14 ELECTRONS
Calculating the average speed is simple using the formula <span>speed = distance/time</span>
Increase in frequency over time until they reach fixation, replacing the ancestral allele in the population
Answer:
An atom which had neither gained any extra electron nor had lost any of its own electron is a Neutral Atom.
If an atom loses or gains one or more electron it becomes charged ie it becomes ion.
eg
Na is neutral atom with no charge
Ca+2 is an atom which has lost two electrons to become positively charged ion
O-2 is an atom which has gained two electrons to become negatively charged ion
Answer:
density can be written as:
d = F / V (weight density) or M / V (mass density)
Since F in the first equation can be written as
B = d V where B is the buoyant force and is proportional to the
weight of the liquid displaced
For a given volume the weight of the liquid displaced is proportional to the density and hence the buoyant force
