Which statement about the electron-cloud model is true?

a. it is the currently accepted atomic model.
b. it can easily be replaced by existing models
c. it specifies the location and momentum of an electron.
d. it does not explain the formation of emission lines

Correct option among the following is A.

Explanation: The electron cloud model was proposed by Erwin Schrodinger.

Option A: There were many models before this which were taken into account to study the nature of electron. But this is the most accepted model till now.

Option B: This model can't be easily replaced as none of the earlier models explained the emission spectra of multi-electron species and most of the compounds are multi-electronic n nature.

Option C: This model do not tell us about the specific location of electron but it tells us about the most probable location of the electron in an atom.

Option D: This model does uses the atom's emission spectra and tells the probability of where the electron might be present in an atom.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l