How many valence electrons in a ground state sulfur atom can have the quantum numbers ml = +1 and ms = + ?
a. 6
b. 1

B. 1

Explanation:

The quantum numbers are:

n -> principal, which represents the shell and varies from 1 to 7;

l -> azimuthal, which represents the subshell and varies from 0 to 3;

ml -> magnetic, which represents the orbital and varies from -l to +l passing by 0;

ms -> spin, which represents the spin of the electron, +1/2 or -1/2

Each orbital (ml) can have at least 2 electrons, each one with different ms numbers. So, only 1 electron is possible to have quantum numbers ml = +1 and ms = +1/2 in the valence shell.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.