An atom with an atomic number of 33 is ionized and found to have a charge of -3. How many electrons in the atom? What is the isotope symbol of this atom ?*

Explanation:

The element with atomic number of 33 is Arsenic (As)

ionized and found to have a charge of -3.

The negative sign denotes that it gained an electron. So -3 means it gained 3 electrons.

How many electrons in the atom?

Total number of electrons = Number of electrons gained + Electrons in it's neutral state

Total electrons = 3 + 33 = 36

What is the isotope symbol of this atom ?

As³⁻ it has the same number of electrons with Krypton (Kr)

it's filtration, but this is an assumption so my apologies if i got this

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :