The atomic number is 8
Atomic number=number of proton or number of electrons
The factors that limit a technological design can be physical and social. The physical limitations are constraints due to nature itself. They include natural laws and properties of materials.
Social limitations on the other hand are limitations that arise as a result of the society we are living in and include the ease of use, safety, attractiveness, and cost.
1. The Alpha particle is a helium nucleus, is positively charged & would barely penetrate a piece of paper.<span />
The answer is C) [Ar]4s2 3d6
