I think Kinetic energy forms <em>Motion energy </em>and Potential energy forms <em>Gravitational Potential energy.</em>
C. pain reliever
ex. tylenol, aleve, etc.
Cadium
Down a period, atomic radii decrease from left to right due to the increase in the number of protons and electrons across a period.
Explanation:
Element Abundance percent by weight Abundance parts per million by weight
Oxygen 46.1% 461,000
Silicon 28.2% 282,000
Aluminum 8.23% 82,300
Iron 5.63% 56,300
