<u>Examples of energy</u>: Heat, Electrical, Mechanical, Nuclear, Chemical, Kinetic and Potential.
<u>Non-Examples of energy</u>: Ideas, matter, water, paper, people and coffee.
Calcium has a chemical symbol of Ca and has an atomic number of 20. This means that a neutral calcium ion will have 20 protons and 20 electrons. As part of Group 2 (alkaline earth metals), a calcium ion will be formed by ejecting 2 electrons from the neutral Ca atom. In chemical equation,
Ca --> Ca²⁺ + 2e⁻
They work by neutralizing the stomach acid that causes heartburn. You can buy many antacids without a prescription. Liquid forms work faster, but you may like tablets because they are easy to use.
Solids are defined by the following characteristics:
definite shape (rigid)
definite volume.
particles vibrate around fixed axes.
