The elements in a star can be determined by analyzing the star's spectrum. which statement explains why no two elements have the same spectrum? a. each element has a unique arrangement of electrons. b. no element has more than two electrons in the first shell. c. atoms of different elements have different masses. d. atomic nuclei contain no electrons.

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space