(; -; 30 points)this is a diagram developed by ejnar hertzprung and henry russell that shows how the magnitude, temperature, color, and spectral class of a star are all related.

whats the term for this? (hint: the beginning letters are h and e)

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

explanation: