Number of electrons and neutrons of an element & mass no, Chemistry

Assignment Help:

The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is:

(1) 17             

(2) 37       

(3)2             

(4)38

Ans: 17

 


Related Discussions:- Number of electrons and neutrons of an element & mass no

Elementary composition of the compound, In early Greece, water was consider...

In early Greece, water was considered one of the four basic "elements" (earth, wind, and fire as the others) in the universe. With the discovery of more basic constituents, the ter

Show the liquation in purification of metals, Q. Show the Liquation in puri...

Q. Show the Liquation in purification of metals? Crude tin, bismuth and lead are purified by liquation. In this process, the impure metal is placed at the top of a sloping hear

Expalin le chteliers principle, Q. Explain Le Chtelier's Principle Ans...

Q. Explain Le Chtelier's Principle Ans. Consider the equilibrium reaction of: A + B -> C + D The forward reaction occurs when A and B combine to form C and D: A +

Dyes, classes of azo dyes\

classes of azo dyes\

Lubricants, What r the requirements for a good refractory material

What r the requirements for a good refractory material

Requirements for the evaluation process, Q. Requirements for the evaluation...

Q. Requirements for the evaluation process? Some of the requirements to be kept in mind for the evaluation of the products are listed herewith: • People in a sensory test a

Ion exchange process of softening hard water, Q. Describe the ion exchange ...

Q. Describe the ion exchange process of softening hard water. What are its advantages?   Ans. Determination of ion exchange or Deionization process:  In this pro

Bohr''s model, which is the main postulate of bohr''s model of atom

which is the main postulate of bohr''s model of atom

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