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.

i think   the answer is c hope i'm right

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.