Which choices are correct based on the images providedwhat causes atoms to form covalent bonds? each atom and the shared electronsthe nuclei of the two atomsthe valence electrons of the two atomsenergy levelsprotons and neutronsvalence electrons

each atom and the shared electrons,

valence electrons

Explanation: A covalent compound is defined as the compound which is formed from the sharing of electrons between the element that are combining together.

These compounds are most likely to be formed when two non-metals combine together. For Examples:

Flourine is an element with tomic number 9 and has 7 valence electrons

Thus for formation of  a molecule, they share their valence electrons and attain stable configuration.

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.