The answer is B, sodium is an element.
Answer:
<h3>The answer is 3000 N</h3>
Explanation:
The amount of force can be found by using the formula

w is the workdone
d is the distance
From the question we have

We have the final answer as
<h3>3000 N</h3>
Hope this helps you
Answer:
la verdad no se no ablo ingles solo espanis
Answer:
a) nitrogen
b) nitrogen =5
Oxygen = 6
Fluorine =7
Explanation:
Usually, if we have two or more elements in a compound, the central atom in the compound is the atom having the least value of electro negativity.
If we consider fluorine, oxygen and nitrogen; nitrogen is the least electronegative of the trio hence it should be the central atom of the triatomic molecule.
The number of valence electrons on the valence shell of each atom is shown below;
nitrogen =5
Oxygen = 6
Fluorine =7
When you calculate the first two numbers in 493×10