They are found in group 3 of the periodic table.
Answer:
It might cause fire or extreme smoke.
Explanation:
Electrolysis takes place when an electric current passes through water.
Answer:
These two numbers are fixed for an element. The mass number tells us the number the sum of nucleons of protons and neutrons in the nucleus of an atom. The atomic number also known as the proton number is the number of protons found in the nucleus of an atom. ... The atomic number uniquely identifies a chemical element.
Explanation:
