What is the first step in this
experiment?

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

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 part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains