How to evaluate mass number, Chemistry

Assignment Help:

Q. How to evaluate mass number?

An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus.

Mass number   =  number of protons    + number of neutrons

When texting the symbol for an isotope write the atomic number and mass number as shown in the following examples.

H atom with one proton and no electrons            H atom with one proton and one neutron

1980_How to evaluate mass number.png


Related Discussions:- How to evaluate mass number

What are the various types of electrodes?, Some important types of electrod...

Some important types of electrodes which are frequently used in electrochemical cells are described as follows:     Metal-metal ion electrode: such type of electrodes includes a

Illustrate important catalyst of aluminium, Q. Illustrate important catalys...

Q. Illustrate important catalyst of aluminium? Anhydrous AlCl 3 is an important catalyst, used in organic synthesis and in the cracking of petroleum. Al 2 (S0 4 ) 3 as such o

Boyles law, 2 applications of boyles law in the field of engineering

2 applications of boyles law in the field of engineering

Give the nine point hedonic scale, Q. Give the nine point hedonic scale? ...

Q. Give the nine point hedonic scale? The nine point Hedonic scale is: Like extremely, like very much, like moderately, like slightly, neither like nor dislike, dislike slightl

CFT, CRYSTAL FIELD THEORY

CRYSTAL FIELD THEORY

Define degrees of freedom - phase rule and phase diagrams, Define Degrees o...

Define Degrees of freedom - phase rule and phase diagrams? Consider a system in an equilibrium state. In this state, the system has one or more phases; each phase contains one

Reactants in excess, Q. Use of Reactants in Excess? Ans. Consider ...

Q. Use of Reactants in Excess? Ans. Consider a recipe for pancakes that calls for 2 cups of pancake batter mix and 1 cup of water. The result of this recipe is 14 pancakes

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd