Look at the video and record the actual change in temperature. Did your expected temperature change match the actual change? If not, determine and explain the cause of the difference.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Drucoe1 is correct, i am leaving this response so you may mark him brainliest

Hope you figure it out: )