In class, we measured the time it took for various students to speed walk. What type of speed did we calculate? O Constant
O Acceleration
O Instantaneous
O Average

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.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Consider the story you just read. all but one of the choices below indicate that something is living.