Brainlest
Example: An atom of the element aluminum has 13 electrons. Use orbital notation to diagram the probable location of its electrons.
1s up/down
2s up/down
2p up/downx3
3s up/down
3p up/nothing blankx2
1. An atom holds 7 electrons. Use orbital notation to model the probable location of its electrons.
2. An atom holds 22 electrons. Use orbital notation to model the probable location of its electrons.
3. An atom holds 17 electrons. Use orbital notation to model the probable location of its electrons.

a electronegativity decreases beacuse the size of nucleus is bigger.

the answer is 0.8m.

by: nicholas

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