The first ionization energy of an element is 176 kilocalories per mole of atoms. An atom of this element in the ground state has a total of how many valence electrons?

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it