【3 Steps】How Many Neutrons Does Rubidium(Rb) Have?||Number of Neutrons in Rubidium(Rb)

How Many Neutrons Does 

Description

Rubidium(Rb) Have?





Hello, chemistry lover! today we are going to help you to find out  how many neutrons rubidium (Rb) have in just 3 steps.

Descriptio







To find out the number of neutrons  for  rubidium (Rb) ,we have to have knowledge about atomic number,atomic mass,mass number of  rubidium (Rb)
.Click picture to see clearly.



                    Step-1:



●The atomic number of 
 rubidium (Rb)   is the number of protons in rubidium (Rb)'s nucleus.



●The atomic mass of 
 rubidium (Rb)   is the average number of  protons plus neutrons of all the isotopes of  rubidium (Rb)   .


●The masss number of 
 rubidium (Rb) is the number of protons plus neutrons of a specific isotope of  rubidium (Rb)  .



How Many Neutrons Does  rubidium (Rb) Have?




                    Step-2:

We need to convert atomic mass of 
 rubidium (Rb)  to mass number of  rubidium (Rb) by rounding if necessary (In case of fraction) .





From periodic table,


  ●Atomic number of 
 rubidium (Rb)   is 37.

●Atomic mass of  
rubidium (Rb) is 85.47

●To find out mass number,we need to round 
85.47 to a whole number.So,by rounding,we are getting mass number of  rubidium (Rb).The mass number of  rubidium (Rb) is 85
.




                    Step-3:

How Many Neutrons Does rubidium (Rb) Have?

By the difference between mass number and atomic number of 
rubidium (Rb),we get the number of neutrons in rubidium (Rb) .


●Number of neutrons=85-37=48

In another way,

●Mass number=Protons +Neutrons

Or,85 =37+Neutrons

Or,85-37=Neutrons

Therefore,
Neutrons=48





Therefore,the number of neutrons in rubidium (Rb) is 48 here for this isotope.Remember that neutrons are present in the nucleous of rubidium (Rb)and it's charge is zero.

●Number of protons in 
rubidium (Rb) is 37.Protons are present in the nucleus of rubidium (Rb).



● Number of electrons in 
rubidium (Rb) is 37.Remember that number of electron equals to proton in a neutral atom.Eletrons are present outside of nucleus of rubidium (Rb)  .


Continue

Comments

Popular posts from this blog

【】How Many Valence Electrons Does Selenium (Se) Have?|| Selenium (Se) Valence Electrons

【●】H2SO4 + NaOH ||Sulfuric acid(H2SO4) and Sodium hydroxide(NaOH)--What is the reaction between sulfuric acid and sodium hydroxide?

【 】Hydrochloric Acid and Sodium Hydroxide||Balanced Equation for Hydrochloric acid and Sodium Hydroxide

【】How to Convert Ethene to Ethanoic Acid or Acetic Acid||How Ethanoic Acid Is Prepared from Ethene

【】How to Convert propene to propyne and propyne to propene conversion

【 】SO2 Lewis Structure ,Valence Electrons ,Formal Charge,Polar or Nonpolar

【 】Sodium Hydroxide and Sulfuric Acid Balanced Equation||Balanced Chemical Equation for Sulfuric Acid And Sodium Hydroxide

What is the sulfur(S)Electron Configuration?

How to Convert Ethanoic Acid to Ethene

【 】CO Lewis Structure ,Valence Electrons ,Formal Charge ,Polar or Nonpolar