Explain how the sun releases enormous amounts of heat energy. a) hydrogen atoms fuse into larger helium atoms and release energy in the form of solar radiation. b) helium atoms split into smaller hydrogen atoms and release energy in the form of solar radiation. c) hydrogen atoms split into smaller particles. energy is converted from lost mass into solar radiation. d) helium atoms fuse into larger gas particles. the partial mass lost is converted into energy under immense pressure.

A) Hydrogen atoms fuse into larger helium atoms and release energy in the form of solar radiation.

Explanation:

Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.

The reactions which takes place in sun:

Overall reaction for the above series of reactions is given by:

Thus in the given reaction as the a heavier nuclei helium is being formed from combination of lighter hydrogen nuclei, this is a nuclear fusion reaction.

i believe it is c.) 1575 j.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.