Natalie observes these characteristics in the model of an atom.

(i) includes positive charge
(ii) contains electrons
(iii) explains the photoelectric effect
(iv) suggests the probable location of electrons

which model is natalie most likely examining?
a. bohr model
b. dalton's model
c. plum pudding model
d. electron-cloud model

Natalie observes these characteristics in the model of an atom.

(i) includes positive charge (ii) contains electrons

(iii) explains the photoelectric effect

(iv) suggests the probable location of electrons Which model is Natalie most likely examining?

A. Bohr model

B. Dalton’s model plum pudding model

C. Electron-cloud model

C. Electron-cloud model

Explanation:

(i) Includes positive charge

The Electron-cloud model includes a positively charged nucleus

(ii) Contains electrons; There are electrons that could be found in specific areas around the nucleus

(iii) Explains the photoelectric effect; photoelectric effect is the pushing off of electrons from the surface of a solid by light

IV) Electron-cloud model predicts the likely position of the location of the electron based on a probability function

electron cloud model

lol for the pointsss

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2