<span>Radioactive elements have an unstable nucleus, this causes them to decay.</span>
Answer:
They both have Four electron shells
Explanation:
- The periodic table arranges elements into columns called groups and rows called periods.
- Elements in the same group share similar chemical and physical properties.
- For example, elements in group 1 called alkali metals have similar properties. They include sodium, lithium, and potassium among others.
- On the other hand elements in the same period have the same number of energy levels or electron shells. For example, elements in period 4 have four energy levels.
if it dissolves in water the ions fade away. Water molecules will surround the ions, to form hydration sphere around the ions of lithium bromide in a solution. Ions instead of interacting with each other will start interacting with water molecules by which they will get dissolvoved in water
Hydrogen, hydrogen ion (H+) is associated with acids