An equal number of protons and electrons in an atom typically results in an atom that is a) negatively charged. b) positively charged. c) radioactively stable. d) electrically neutral.

Answer : The correct option is, (D) electrically neutral

Explanation :

There are three subatomic particles which are protons, neutrons and electrons. Protons and neutrons are present in the center of the nucleus and electrons are located around the nucleus. The protons are positively charged, electrons are negatively charged and neutrons are neutral, they have no charge.

In an electrically neutral atom, the number of protons are equal to the number of electrons.

In a positively charged and negatively ions, the number of protons are not equal to the number of electrons.

In a radioactive stable atom, the number of protons are not equal to the number of electrons.

Hence, an equal number of protons and electrons in an atom typically results in an atom that is electrically neutral.

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 :