Answer:
Option 1
Explanation:
Option number 1 is the most compact one which indicates it is a solid
2.5 g is the mass of the penny for Canadian coins which have become defunct
That would be the proton. The number of protons in the nucleus determine which element it is and its properties.
<span>Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second.</span>
