Answer:
False
Explanation:
Every chemical element undergoes a reaction in order to fulfill the completion of their outermost shell. This is the case of nitrogen (symbol "N"), which is an element found in group 5 of the periodic table with atomic number 7 (i.e. 1s2 2s2 2p3). It possesses three valence electrons in it's outermost shell.
Looking at the configuration of the Nitrogen atom, it requires three electrons to complete its electron shell. Hence, nitrogen will enter a reaction in order to have its need for THREE ELECTRONS met in order to have its electron shell full.
Note that, nitrogen enters a chemical reaction to look for three electrons not three neutrons.
Answer:
Kg/L , g/mL
Explanation:
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
I don't understand the elements, which ones are capital letters and which ones are lower case.
<u>Answer:</u> The normality of unknown acid solution is 0.232 N
<u>Explanation:</u>
To calculate the normality of the unknown acid solution, we use the equation:
where,
are the normality and volume of the unknown acid solution
are the normality and volume of NaOH solution
We are given:
Putting values in above equation, we get:
Hence, the normality of unknown acid solution is 0.232 N
Answer:
Ne
Explanation:
It has the lowest density.