Which element in the boxes above belongs in column 3 on the periodic table?

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.

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Which of the following words describe the reality that the universe looks the same from various perspective