In which of the compounds ch4, nh3, h2o, sih4, or h2s is δ+ for hydrogen the greatest? select the single best answer?

-

Explanations:- When the covalent bond is formed between two different atoms then the more electron negative atom has and the less electron negative atom has charge.  More is the electron negativity difference, greater is the charge separation.

Looking at all the given molecules, Oxygen is most electron negative and hydrogen is less electron negative(hydrogen is more electron negative than Si). So, the best choice is .

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

2b2t

explanation:

2b2t