Login
Subject: Science, asked on 22/10/17

To form a polyatomic ion,say OH-,oxygen and hydrogen shares one electron each but oxygens valence shell is not completed as it needs 8 electrons. To complete it,what does oxygen do or from where oxygen gets electron

Subject: Science, asked on 21/10/17

To form an ion;to become stable,atom has to loose or gain electron.in the case of gaining electron,from where Cl get electrons to complete their valence shell and form Cl-

Subject: Science, asked on 5/3/17

Size of a nucleus is very small as compared to the size of the atom. Explain

Subject: Science, asked on 18/2/17

Can somebody tell me what we have to learn for chem, bio and physics lab tests(sa 2).
Like for chemistry procedures are important.
Plz answer asap.

Subject: Science, asked on 17/1/17

Solve this:

Subject: Science, asked on 17/1/17

Draw the atomic structure of an atom with atomic number 11

Subject: Science, asked on 17/1/17

Give reason
(a) atomic number dies not change during a chemical reaction
(b)isotobes of an element are chemically simillar
(c) an atom electrically netral

Subject: Science, asked on 17/1/17

If electronic configaration of a neutral atom z is 2,8,6 what will be the electronic configration of

Subject: Science, asked on 14/1/17

State bohr bury's rule

Subject: Science, asked on 1/2/16

why is electrons mass negligleble in an atom and the total mass of atom is in the nucleous?
 

Subject: Science, asked on 27/1/16

Name the subatomic particle whose number is not same in isotopic species of an element.

Subject: Science, asked on 27/1/16

Name the element which has no neutron in its atom.

Subject: Science, asked on 1/1/16

what are isotopes, isobars ,isotone? define .

Subject: Science, asked on 2/12/15

applications of iso bars?

Subject: Science, asked on 22/11/20

Please answer question no.22 (b) part

12345
What are you looking for?