SCIENTISTS CAN USE SPECTRA ANALYSIS OF STARS TO DETERMINE WHICH OF THE FOLLOWING? SELECT ALL THAT APPLY

SURFACE TEMPERATURE OF THE STAR
CORE TEMPERATURE OF STARS
ELEMENTS IN THE CORE OF THE STAR
ELEMENTS ON THE SURFACE OF THE STAR

Both the surface and core temperature can be measured using light.

surface temperature of the star

core temperature of stars

elements on the surface of the star

Explanation:

I got it right on the test!!

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.