what general statements you can say about the startar materials compared to the
final materials?

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.