I believe the answer is Exothermic
Reactivity. It is the ability of matter to combine chemically with other substances.
Answer:
Fossil Fuels have the ability to pollute and trash our ecosystems. Its better for us to use clean and renewable energy too.
Explanation:
Assuming you meant cation and not action, gallium would most likely form a cation because it is a group A element
Answer:
The atomic number on the Periodic Table identifies the number of protons in any atom of that element. Copper, atomic number 29, has 29 protons. Finding the atomic number of an element reveals the number of protons.
To find the number of neutrons in the atom, subtract the atomic number from the atomic mass.