Electronegativity is the measure for an atom to acquire an electron to form a bonding pair. Lithium wants to lose its outermost electron and does not want to acquire any more electrons therefore it would have the lowest EN.
Answer:
₈₄Po²²⁰
Explanation:
₈₆Rn²²⁴ → ₈₄Po²²⁰ + ₂He⁴
In given decay reaction alpha particle is emitted from Radon.
Alpha radiations:
Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number 4 less than and atomic number 2 less than the starting atom.
Alpha radiations can travel in a short distance.
These radiations can not penetrate into the skin or clothes.
These radiations can be harmful for the human if these are inhaled.
These radiations can be stopped by a piece of paper.
Hi, not sure if this is what you’re asking, but this would be a chemical change / chemical reaction. Rust is an iron oxide, formed by a redox reaction. :)